I had a check engine light on forever. In -38°C I checked everything. I had my battery checked with a hydrometer. 2 cells were shot (the battery charger read 12.5 amps which indicated battery fully charged and therefor, good), but you must have battery cells checked by hydrometer. Long story short....I don't know or remember all I did, but after having battery replaced the check engine light went off. Simple fix. Coolant light still on. I believe its the coolant tank float. OBD test indicated rear O2 sensor buggered. 270K. Runs like a charm. I'm by no means a mechanic, so I only absorb 30% of complex mechanical speak let alone fix the problems. But, I got my 2003 Saturn Ion free and fixed all I could myself using junkyard parts (except new, metal windshield wiper motor transmission). Sometimes I think I can cure a rainy day! David Alberta, January 2020
What everyone should do is buy a can of regular Seafoam with the red lettering. Pour a canister of that with a half tank of gas. I had the check engine light with a P030 code and was worried I had to replace the catalytic converter. After driving about 150 miles or so, the light came off and saved me hundreds of dollars on costly repairs.
So thorough! I commented on one of your other posts and you said to check my AT fluid level for overfilling (causing stuttering on acceleration or hill climbing). I never heard that and almost didn't believe it but checked this morning and pulled some out. I've not road tested on a suitable grade yet but it beats chasing these other issues yet. I hope that was it. Kudos! No one else suggested that. I'll follow up.
I found this video very helpful now i know what I need to look for since my car is idling a bit rough while parked but it runs was smoother when taking off down the road all this is on my 03 Pontiac Bonneville SE 3.8L V6
If your cel stays on it is called a "hard code" and needs attention soon. If the light comes on, than goes off for a while, and than back on, that is called a a"soft code" and will become a hard code at some point, but is safe to drive until it stays on, or corrects itself and stays off. If the light comes on and the car still drives fine, you can still drive it home, or to a shop as soon as you can. If the starts running bad, looses power or stops all together, than that is the time to call a tow truck.
I have 2002 Miata that needs to pass emissions and registration. It recently had a engine swap, but the light is always on. We have tried the reset methods, and all the tests, but still am unable to figure out the problem. Any help helps
I think I have your answer Dalton. You have a 2002 Miata made by Mazda. I have a 2000 Ford Ranger which has the same engine as the Mazda pick up. My "check engine" light has been on for many years. I finally had my very reputable mechanic check it out. After running diagnostics he finally determined what the issue was. He told me that, in these older engines, where several or just one piston shaft in the engine block, there can be a small crack. As time goes by the crack naturally gets longer or wider. It's nothing to be overly worried about. It's just a sign the engine is getting old. However this causes carbon monoxide to leek into the atmosphere, so the "check engine" light alerts you to it. I have 170,000 miles on mine. Anyway, if you have over 80,000 miles or more, I wouldn't go down the path of replacing this and replacing that until your bank account is tapped out. You may be chasing after a phantom. If you really want to find out if what I've told you is your issue, take it to a trust worthy mechanic who's been in business many years. He should have the advanced diagnostics to run a thorough heck on your Miata. And like I said, if you have a lot of miles on your car, this is most likely the issue. Just don't waste a ton of money only to be stuck with a "check engine" light that still won't go out. I found out the hard way, so maybe I can save you the money I wasted chasing a phantom. Take care guy and best of luck. Oh also, a good mechanic may be able to pass your car through inspection, which should get you two more years of "I don't have to worry about it for 2 more years." This is the case in my state of NJ. Don't know about your state. Hope it works out for you, I always wanted to own a Miata. Mazda trucks like mine and your car have a reputation for longevity if the general maintenance is not neglected. Good luck. John Osk in Jersey.
Solution......remove all sensor. Lmao When we had cars forty years ago ; we only had two lights on the dashboard, a green light and a red light, one for the engine (oil) and a green for the dynamo and whatever the situation they kept running for thirty years plus. xxxxx
Here's my question, my cars approaching the 100,000 miles mark, will check engine light come on to remind me that I need to service all things mention in the owner's manual?
I can't get rid of the PO420 catalytic converter code. Is there any way I can get rid of this to pass smog other than replacing or driving a 100 miles or more?
Extreme measure is 1 gallon of laquer thinner in 15 gallon gas tank. The CAT converter MAY affect O2 sensor. Alternatively, take out O2 sesnsor and decarbonize and clean. Heard all this on UA-cam. Haven't done it myself. Or change rear O2 sesnsor ($70). David Alberta
Help. In my car fuel flap/fuel cover it says '' must be used above 92 unleaded gasoline '' but in my country we use only 91 gasoline, does it cause check engine light on? Because my car check engine light on. I am not sure, does it cause the problem? My car is 2013 mitsubishi asx 1.6 engine. Thanks.
I have a 3s engine the camshaft sensor is not connected, the harness is different I used a different engine instead. This is a Toyota Noah. When I start the engine check light goes off just after a few seconds it goes on and you could smell the fuel in though the Windows are shut. What could be your advice sir.
Hi thank you boss I have a mercedes a180 2014 petrol manual engine light is on I checked by code reader my car code is P22AA I DONT KNOW CAN YOU tell me how to sort out or fix it please thanks??
My 2006 Corolla 'check engine light' is on constantly. The guy at Firestone plugged his hand held computer into my car just below the dash. He read a code and said that it was a part in the transmission. He turned the light off and told me to come, if the light came on, again. Well, the light almost immediately came back on, so I went to a parts store and had them do the same computer and code reading. That person said the same thing about the transmission. Point being! This video didn't mention anything about transmission problems. My transmission on the car works well. I believe the light is on because of one the 34 possible causes mentioned in this video. So, why is the computer code saying it is a transmission problem?
2007 Camry 4 cyl Code shown po172 and po101. O2 sensor Air fuel sensor Air flow sensor Replaced them all. Still same engine 💡 code come up. Any suggestions?
Hi, thanks for the good video. I have the code P01410 on my 2000 chevy tracker. Apparently 1410 is an issue with the fuel tank pressure system. I bought the part from the dealer and replaced it but I still have the check engine light on with the same code. I tried replacing the gas cap, but no luck. Any idea what else the problem could be? Thank you.
Best laugh i've had in a long time, blah, blah, blah will result in a check engine light, a check engine light, a check engine light...... Here's the laugh, a trustworthy mechanic, they don't seem to exist, they tell you what the monitor says, change the part, charges you and the engine light is still on, oh it must be something else, let's change this, oh light still on, I was afraid of that, main computer, $900 , oh cam roller chains, $2500, that should get your light off...... A "trustworthy mechanic", are there any left, parts changers is what they should be called, if they tell you that this part needs changing and the light doesn't go off, you shouldn't have to pay for their misdiagnosis, all these sensors are just a money pit and money maker for dealerships!
An oil change will not cause a check engine light to come unless the mechanic disturbed a sensor or actuator while performing the oil change. The most common cause of a check engine light is a loose gas cap. Make sure you hear a click when you fasten it back on.
hi... My Toyota Revo vehicle has recently flashed the engine light for a long time (not blinking - just solid light) after driving for more than 1 hour.. it has happened 2 to 3 times since. Afterwards, I took it for a tune-up at a local car repair shop for brand new spark plugs, battery. Then after a week, the engine light reappeared again ... What could possibly be the faulty part? I'd appreciate your reply if you can sir. I'm taking it to a mechanic again tomorrow, but i'd like to hear your advice on this. Thanks!
Lawrence Kin It could be a number of different things. It’s very important that the car be checked with a diagnostic scanner to see what trouble codes are stored which will usually point you in the direction as to what’s wrong. The bottom line is you need a good trust worthy mechanic. I tend to steer away from dealerships as they are way overpriced on parts and labor.
@@proclaimliberty2000 I had it checked yesterday and a different mechanic checked it out but he didn't use an OBD2 diagnostic scanner, since my vehicle is using an OBD1 interface. So he manually placed a pin to the OBD1 and brought out his "codes bible/encyclopedia" for reference. After 10 minutes, he diagnosed and deemed that main culprit was the speedometer defect , since the code that registered was "42", which was really the speedometer problem. So I had the speedometer fixed, and it was revealed that the "gear" of the speedometer was causing the check engine light.. I had that replaced with a brand new gear, which cost me around $38 (gear part and labor included) . I had it for a test run for about 20 minutes and there was no more of the "check engine light" thankfully.
However, i have this question in my mind.... since there are not much OBD1 scanners in the market, would it be smart to buy these two things: 1) an OBD1 to OBD2 converter cable and 2.) OBD2 Diagnostic Scanner and then use these two to diagnose my Toyota Revo vehicle? Would that be a smart thing to do sir?
@@lawrencekin02 Oh yes, I remember checking an OBD1 with a paper clip before. Well that's great! Your persistence paid off. It sounds like you found a good mechanic.
My check engine light has been on for 7 years and it's exactly the same thing every time o2 sensor. There has to be a way to fix this once and for all! Like come on already!
Jacqueline Perry even if the check engine light turned on and then turned off the trouble codes are stored. Take it to an auto parts store and have them check it with a diagnostic scanner which they will perform for free.
This video is very informative but drove me crazy hearing the repeated phrase check engine light. I have a check engine light and it runs smooth and I can't find nothing wrong. I might sell it and join the Amish people and get a horse and buggy wagon with real horse power so I don't have to worry about the check engine light. I would save a ton of money not replacing all those parts one by one just to turn off the check engine light. lol
Or as my mechanic told me f*** it. I replaced "upstream o2 sensor". I will replace downstream sensor under car between muffler and cat converter. Then map cleaning. My oil sensor just came on too, but the oil is perfect. I change it myself. Coolant light on. Its perfect. I do that myself too. I bought a obe scanner. I'll check everything in the spring. Car purrs like a kitten. I rack my brain at night to figure it out. I'm not mechanic. Just a DYI 'er with time. I got my car for free and fixed it. David Alberta P.S. My engine was running cold. I put on winter guard on grill and in front of radiator. It runs at 200°F or an a proximation of that. I idled it today for 20 minutes and it was up to half, (but with this experiment the blow fan was not running). I'll keep working and learning, I guess. Good video.
I got the ck engine continuously for over 2 years. I know what it is… but l went to different shops for opinions?? 95 % of technicians have no idea what they doing. They would replace unnecessary things to make $$. Just ridiculous look out for crooks they everywhere
I had a check engine light on forever. In -38°C I checked everything. I had my battery checked with a hydrometer. 2 cells were shot (the battery charger read 12.5 amps which indicated battery fully charged and therefor, good), but you must have battery cells checked by hydrometer.
Long story short....I don't know or remember all I did, but after having battery replaced the check engine light went off. Simple fix.
Coolant light still on. I believe its the coolant tank float. OBD test indicated rear O2 sensor buggered.
270K. Runs like a charm.
I'm by no means a mechanic, so I only absorb 30% of complex mechanical speak let alone fix the problems. But, I got my 2003 Saturn Ion free and fixed all I could myself using junkyard parts (except new, metal windshield wiper motor transmission).
Sometimes I think I can cure a rainy day!
David
Alberta, January 2020
What everyone should do is buy a can of regular Seafoam with the red lettering. Pour a canister of that with a half tank of gas. I had the check engine light with a P030 code and was worried I had to replace the catalytic converter. After driving about 150 miles or so, the light came off and saved me hundreds of dollars on costly repairs.
This guy's voice and presentation are A+++ perfection.
Thanks!
So thorough! I commented on one of your other posts and you said to check my AT fluid level for overfilling (causing stuttering on acceleration or hill climbing). I never heard that and almost didn't believe it but checked this morning and pulled some out. I've not road tested on a suitable grade yet but it beats chasing these other issues yet. I hope that was it. Kudos! No one else suggested that. I'll follow up.
girohead 👍😊
I found this video very helpful now i know what I need to look for since my car is idling a bit rough while parked but it runs was smoother when taking off down the road all this is on my 03 Pontiac Bonneville SE 3.8L V6
You blew my car knowledge wide open🌞
Wow!!! Good! Good!! You have just mentioned them all!! And yes, one of the item/s shall definitely be the culprit!!
sheikh shallo 👍😊
1:44 Why does a faulty coolant thermostat cause a rich fuel-air mixture?
Because it thinks the engine is cold.
Thank you so much for this video.....helps everyone and the pictures makes it easier as I have the check engine light on my Chev Spark
Lee Moodley 👍😊
Took many possibilities for the checking engine light android it's nearly IMPOSSIBLE to check ALL or replace ALL sensors!
If your cel stays on it is called a "hard code" and needs attention soon. If the light comes on, than goes off for a while, and than back on, that is called a a"soft code" and will become a hard code at some point, but is safe to drive until it stays on, or corrects itself and stays off. If the light comes on and the car still drives fine, you can still drive it home, or to a shop as soon as you can. If the starts running bad, looses power or stops all together, than that is the time to call a tow truck.
I have 2002 Miata that needs to pass emissions and registration. It recently had a engine swap, but the light is always on. We have tried the reset methods, and all the tests, but still am unable to figure out the problem. Any help helps
I think I have your answer Dalton. You have a 2002 Miata made by Mazda. I have a 2000 Ford Ranger which has the same engine as the Mazda pick up. My "check engine" light has been on for many years. I finally had my very reputable mechanic check it out. After running diagnostics he finally determined what the issue was. He told me that, in these older engines, where several or just one piston shaft in the engine block, there can be a small crack. As time goes by the crack naturally gets longer or wider. It's nothing to be overly worried about. It's just a sign the engine is getting old. However this causes carbon monoxide to leek into the atmosphere, so the "check engine" light alerts you to it. I have 170,000 miles on mine. Anyway, if you have over 80,000 miles or more, I wouldn't go down the path of replacing this and replacing that until your bank account is tapped out. You may be chasing after a phantom. If you really want to find out if what I've told you is your issue, take it to a trust worthy mechanic who's been in business many years. He should have the advanced diagnostics to run a thorough heck on your Miata. And like I said, if you have a lot of miles on your car, this is most likely the issue. Just don't waste a ton of money only to be stuck with a "check engine" light that still won't go out. I found out the hard way, so maybe I can save you the money I wasted chasing a phantom. Take care guy and best of luck. Oh also, a good mechanic may be able to pass your car through inspection, which should get you two more years of "I don't have to worry about it for 2 more years." This is the case in my state of NJ. Don't know about your state. Hope it works out for you, I always wanted to own a Miata.
Mazda trucks like mine and your car have a reputation for longevity if the general maintenance is not neglected. Good luck. John Osk in Jersey.
Solution......remove all sensor. Lmao When we had cars forty years ago ; we only had two lights on the dashboard, a green light and a red light, one for the engine (oil) and a green for the dynamo and whatever the situation they kept running for thirty years plus. xxxxx
Solution, stop watching youtube and live you life like forty years ago.
@@wildventures8409 on point
Thank you for the lecture
Here's my question, my cars approaching the 100,000 miles mark, will check engine light come on to remind me that I need to service all things mention in the owner's manual?
I can't get rid of the PO420 catalytic converter code. Is there any way I can get rid of this to pass smog other than replacing or driving a 100 miles or more?
MrJohnnebgood It’s more than likely a bad oxygen sensor or a bad intake manifold gasket.
Extreme measure is 1 gallon of laquer thinner in 15 gallon gas tank. The CAT converter MAY affect O2 sensor. Alternatively, take out O2 sesnsor and decarbonize and clean. Heard all this on UA-cam. Haven't done it myself. Or change rear O2 sesnsor ($70).
David
Alberta
How do you narrow it down if i bought all those parts that would be expensive
Robert Mccluskey Hopefully you have a check engine light and that will help you narrow it down.
Help. In my car fuel flap/fuel cover it says '' must be used above 92 unleaded gasoline '' but in my country we use only 91 gasoline, does it cause check engine light on? Because my car check engine light on. I am not sure, does it cause the problem? My car is 2013 mitsubishi asx 1.6 engine. Thanks.
Real secret s very helpful knowledge thank you 🙏💐⭐⭐⭐⭐⭐🔧🕺
Hi I have a 2006 Ford Focus 1.6 BZ Core sedan.. it has a terrible miss when driving.. idle is uneven ..any ideas on how to check it out?
PAJERO GDI IO.. wherr can we find the diagnostic port.. in order to perform scanning
It will usually be underneath the dashboard by the steering wheel.
Hi my cable cord is old and that’s probably why my engine light turns on do they need to be replaced
I have a 3s engine the camshaft sensor is not connected, the harness is different I used a different engine instead. This is a Toyota Noah. When I start the engine check light goes off just after a few seconds it goes on and you could smell the fuel in though the Windows are shut. What could be your advice sir.
Very nice❤
Very nice...and clear english...
Thanks! ua-cam.com/video/nDJxYI2b5MM/v-deo.html
What a training, wow... Thanks!!
Air bag system on
Þ uygur þ57
Hi thank you boss I have a mercedes a180 2014 petrol manual engine light is on I checked by code reader my car code is P22AA I DONT KNOW CAN YOU tell me how to sort out or fix it please thanks??
I have a code P0125. I had the Coolant Sensor, PVC Valve, Spark Plugs, Radiator & Thermostat replaced. The check engine light is still on.
Make sure the engine coolant is full. If that's good, then disconnect both battery cables for one hour and then reconnect and see what happens.
proclaimliberty2000 Okay, will do. Thank you.
Reena 👍😊
L
Which one has a foul odor?
Keep watching and support from Al Khafji Saudi Arabia 🙏
Thank you very much!
My 2006 Corolla 'check engine light' is on constantly. The guy at Firestone plugged his hand held computer into my car just below the dash. He read a code and said that it was a part in the transmission. He turned the light off and told me to come, if the light came on, again. Well, the light almost immediately came back on, so I went to a parts store and had them do the same computer and code reading. That person said the same thing about the transmission. Point being! This video didn't mention anything about transmission problems. My transmission on the car works well. I believe the light is on because of one the 34 possible causes mentioned in this video. So, why is the computer code saying it is a transmission problem?
rhi gel What is the trouble code?
In my opinion should open by ourselves all the engine maybe finding the problem I think its the best way to take it to micanic simple is that
Its mostly a money racket!!😡
2007 Camry 4 cyl
Code shown po172 and po101.
O2 sensor
Air fuel sensor
Air flow sensor
Replaced them all.
Still same engine 💡 code come up.
Any suggestions?
This all points to something faulty with the mass air flow sensor. Did you use OEM parts?
Denso.
@@1ivandang That's what I use. Good quality. Do you have your own diagnostic scanner to clear the trouble codes?
Check engine light comes on. Time to clean the egr again. Whomever invented the egr is a bad person.
Steve LOL!
This made me laugh.
Ijj
here's a guy that's flat out sick and tired of people going, 'what?'
You can easily Buy a brand new car in same price replacing all those components
😆
The best way s If don't find the problem take the car for micanic to fix it otherwise Change that change this make you mad
That's why you need to read the obd2 codes first like he said
in this market!? good luck
Wow, that's a lot of possibilities.
Hi, thanks for the good video. I have the code P01410 on my 2000 chevy tracker. Apparently 1410 is an issue with the fuel tank pressure system. I bought the part from the dealer and replaced it but I still have the check engine light on with the same code. I tried replacing the gas cap, but no luck. Any idea what else the problem could be? Thank you.
Besides the gas cap, what other part did you replace?
fuel tank pressure sensor, it was located on top of the gas tank.
Nice video
Best laugh i've had in a long time, blah, blah, blah will result in a check engine light, a check engine light, a check engine light...... Here's the laugh, a trustworthy mechanic, they don't seem to exist, they tell you what the monitor says, change the part, charges you and the engine light is still on, oh it must be something else, let's change this, oh light still on, I was afraid of that, main computer, $900 , oh cam roller chains, $2500, that should get your light off...... A "trustworthy mechanic", are there any left, parts changers is what they should be called, if they tell you that this part needs changing and the light doesn't go off, you shouldn't have to pay for their misdiagnosis, all these sensors are just a money pit and money maker for dealerships!
I had check engine light which I noticed after change oil after having run 30 or so miles. This happened two occasions. Is this related?
An oil change will not cause a check engine light to come unless the mechanic disturbed a sensor or actuator while performing the oil change. The most common cause of a check engine light is a loose gas cap. Make sure you hear a click when you fasten it back on.
Knock sensor?
hi... My Toyota Revo vehicle has recently flashed the engine light for a long time (not blinking - just solid light) after driving for more than 1 hour.. it has happened 2 to 3 times since. Afterwards, I took it for a tune-up at a local car repair shop for brand new spark plugs, battery. Then after a week, the engine light reappeared again ... What could possibly be the faulty part? I'd appreciate your reply if you can sir. I'm taking it to a mechanic again tomorrow, but i'd like to hear your advice on this. Thanks!
Lawrence Kin It could be a number of different things. It’s very important that the car be checked with a diagnostic scanner to see what trouble codes are stored which will usually point you in the direction as to what’s wrong. The bottom line is you need a good trust worthy mechanic. I tend to steer away from dealerships as they are way overpriced on parts and labor.
@@proclaimliberty2000 I had it checked yesterday and a different mechanic checked it out but he didn't use an OBD2 diagnostic scanner, since my vehicle is using an OBD1 interface. So he manually placed a pin to the OBD1 and brought out his "codes bible/encyclopedia" for reference. After 10 minutes, he diagnosed and deemed that main culprit was the speedometer defect , since the code that registered was "42", which was really the speedometer problem. So I had the speedometer fixed, and it was revealed that the "gear" of the speedometer was causing the check engine light.. I had that replaced with a brand new gear, which cost me around $38 (gear part and labor included) . I had it for a test run for about 20 minutes and there was no more of the "check engine light" thankfully.
However, i have this question in my mind.... since there are not much OBD1 scanners in the market, would it be smart to buy these two things: 1) an OBD1 to OBD2 converter cable and 2.) OBD2 Diagnostic Scanner and then use these two to diagnose my Toyota Revo vehicle? Would that be a smart thing to do sir?
@@lawrencekin02 Oh yes, I remember checking an OBD1 with a paper clip before. Well that's great! Your persistence paid off. It sounds like you found a good mechanic.
@@lawrencekin02 In most cases that will not work. You have to have a reader which will read OBD-I.
My check engine light has been on for 7 years and it's exactly the same thing every time o2 sensor. There has to be a way to fix this once and for all! Like come on already!
Vickie Morales How many times have you changed your sensor?
Jesus My Savior I know, my car has 2. She said every year for 7 years she needed an 02 sensor. I didn't think any vehicle had that many 02 sensors.
Mine is on
2008
I don't know what to do
How about the theft light
Dude thanks but your scarin me
bro you really need to go out there and see more of this wide, vast world.....
@@TrillKump lol
Mines reading no codes lights on some drives on and some off.
Jacqueline Perry even if the check engine light turned on and then turned off the trouble codes are stored. Take it to an auto parts store and have them check it with a diagnostic scanner which they will perform for free.
For free! Not in the uk
4:16
Great!
When my engine light came on i changed my valve no more engine light on anymore
@Jesus My Savior You were trolled.
This video is very informative but drove me crazy hearing the repeated phrase check engine light. I have a check engine light and it runs smooth and I can't find nothing wrong. I might sell it and join the Amish people and get a horse and buggy wagon with real horse power so I don't have to worry about the check engine light. I would save a ton of money not replacing all those parts one by one just to turn off the check engine light. lol
Dude. Might as well reply the car. Too many damn possibilities that you mention.
I have a error code 16B1 Peugeot 508sw please can someone help me
Your engine need to replace before you get yourself a check up.
My Honda 2007 check engine light just start blinking, what could be the problem?
ua-cam.com/video/nDJxYI2b5MM/v-deo.html
Blinking worse than constant.
You engine check engine light will costs you fortune!
Or as my mechanic told me f*** it. I replaced "upstream o2 sensor". I will replace downstream sensor under car between muffler and cat converter.
Then map cleaning.
My oil sensor just came on too, but the oil is perfect. I change it myself. Coolant light on. Its perfect. I do that myself too. I bought a obe scanner. I'll check everything in the spring.
Car purrs like a kitten.
I rack my brain at night to figure it out.
I'm not mechanic. Just a DYI 'er with time.
I got my car for free and fixed it.
David
Alberta
P.S. My engine was running cold. I put on winter guard on grill and in front of radiator. It runs at 200°F or an a proximation of that.
I idled it today for 20 minutes and it was up to half, (but with this experiment the blow fan was not running).
I'll keep working and learning, I guess. Good video.
Good for me thanks
Allan Abadilla 👍😊
I got the ck engine continuously for over 2 years. I know what it is… but l went to different shops for opinions?? 95 % of technicians have no idea what they doing. They would replace unnecessary things to make $$. Just ridiculous look out for crooks they everywhere
lake
Free diagnostic check?
What country you from?
Come to UK and starting price is £60 for check.
Free my arse (UK saying)
Here across the pond, Auto Zone and O'Reillys (2 major auto parts stores) will do it for free.
I ley you work