Honda/Acura CKF bypass trick - In Depth
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- Опубліковано 9 лют 2025
- Here is a more in depth explanation of how to bypass your Crank position sensor if you're running an OBD2 ecu and harness while using an OBD1 or JDM block
When I say "knock sensor" in the video I actually mean the CFK or crank sensor. Just a mistake on my part while filming.
www.ff-squad.co...
I know this video is like 5 years old but I just wanna say thank you for making this video, you saving lives in 2024 lol
Hey man, just wondering if you’re car started throwing a p1382 (CYP Sensor) and did you do exactly what’s shown here?
@@jaipascual9764How long after the bypass did that code come up? You might have a faulty connection on the splice.
Its Sept. ‘24 found this gem of a video that saved me a ton time and patience! Thanks to your help and video this took me no more than 10 minutes from disconnecting the battery to reconnecting! Hands down the man for giving a thorough explanation of how to get this done! Thank you!
WORKED PERFECT FOR ME!! I have a 1998 Honda Civic ek hatch.. running a B20b Jdm motor & a p75 Ecu obd2a .. I did this method & CEL is completely GONE for good! Thanks for this method! Don’t be afraid to cut the wires after the splice! It works 100%
Derrick Lynch yes if you have a JDM B20b motor. My friend did the same on his crv & fixed his check engine light
So your running a ob2 ecu on a obd1 engine?
@@Editzbybrian I was with the b20 yeah but I swapped it .. I’m k24 turbo now with a k pro ecu
@@Shotbyfana how did u get rid of the cel’s. I’m asking because I have a jdm b16 with a jdm ecu. But I need to pass emissions and I put a p2t obd2 ecu but there are some cels such as p1259.
Thanks for making this vid! Going to share it on my CKF bypass tech page as a visual aide.
Does this work for a D16y7 block / D16y8 head mini me swap? 1998 Honda Civic EX
Thank you for making this. Fixed my issue with mini me swap.
I have a 98 with the stock d16y7 , I got the check engine light for the exact same thing . But the wire was torn since it was grinding against the alternator belt . Would this bypass still work for me ? I just don’t wanna go through the hassle of changing out the sensor . Lol
Did you try this? Lemme know having the same issue
I need to know the same thing
So my 99 civic had this mod done to it because it's got the JDM B18C swap. My question is I'm installing a chipped p28 for some future dyno tuning. Should I leave the wires spliced? Or put them back to stock since I'm running an obd1 ecu in an obd2 car?
did you ever find out the answer to this?
@@JDMworx I ended up buying a rywire tuck harness and the ckf bypass is isn't needed because I'm running the obd1 ecu. The ecu I was running was the obd2 and it required this bypass.
@@lafollettegarage4019 how is the rywire, plug and play?
I'm B18 with no ckf or oil pressure switch, obd2 harness and chipped p28 with jumper, took my harness apart to tidy it up and I've found splices and jumpers 🤦
@@JDMworx I too found the same. A bunch of splicing. But it's a nice harness! It eliminates alot of the extra wires and tucks all those ground wires inside the car under the dash.
what are the drawbacks of doing this in daily driving?
to anyone wondering, there are no drawbacks lol
it will run as nothing is wrong no check enging at least from crank position sensor
If anything it's a positive one less sensor you have to worry about
You sound like you know a lot about the compatibly of different honda parts, I recently bought a 2001 integra with a b18a1 in it and someone had already done this to my ecu 😆
Does your car still run good without that sensor
Very helpful. I was getting a head ache trying to read this online lol
i’m running obd2a ecu with an adapter harness to obd2b car do i do the bypass on both the car side obd2b harness and then again on the obd2a adapter side to the ecu?
connecting ckf to cyp or ckf to ckp?, im confused...
So I did three ckf bypass but I'm getting an open circuit from the ckf do I need to swap the distributor off the motors
What swap are you doing? How did it go
Just take a razor and strip all the way around the wires on the plug without cutting them.Peel off a small section of the insulation without cutting but make sure you remove it all the way around.Then use a small bridge wire stripped on both ends to bridge the wires together.So no clips or cutting in two that fails on some people.
i have a 2000 civic ex. my d16y8 block took a dump. so i bought a d16zc (z6) block. therefore, im keeping my y8 top.
this block does not have a knock sensor. i was told i have to bypass the crank sensor. i wanna keep my p2p ecu. i dont want to switch to a p28 ecu.
is this what you're doing? also, are there any drive-ability/performance issues by doing this?
That's pretty much exactly what I was doing in this vid. This CKF bypass is for the sensor on the crankshaft. The Y8 does use a knock sensor where as the Y7 does not, but the Y7 does have a threaded portion near the oil pressure switch to accommodate one. Does the Z6 block have anything like that? The knock sensor isn't super picky about where it's located, as long as it's somewhere on the block so you may have to get creative.
As far as performance issues go, none to report. I don't have the civic anymore that I did the mod to but it ran and drove as if it had the stock D16Y7 under the hood.
Where at by oil pressure switch do u know?
Can you swap out the oil pump to one for a d16y7 oil pump. Seems like it would be better idea. This way you have new pump
can someone just comfirm, this is tapping on the cylinder position sensor.. right?
i have the haynes manual, lost spark when i put in a d16a on a 98 civic, it was working ok before a put the new engine in,
im trying to understand the wiring diagram and the logic on this trick.
did you get it to get spark again
So tried doing this and I’m still getting a check engine light with a p1382 am I doing something wrong or is that code not related to this ?
I got the same code. Did you end up figuring out how to fix it?
Thank you very much for this video. Thanks to this my car is running again
Tried this and it got rid of the old code but is now throwing a new one. It’s now throwing a p1382 code “Cylinder position 1 sensor”.
Hello sir, are you still available?!
Anyone know how to pass inspection with a jdm b16. I’ve bought a usdm p2t ecu but how do I get rid of the codes?
Hi
I have Honda CR-V 2000 with OBD2b.
Will this method work in my car? I have the same issue in my car CRF PROBLEM.
Can you pass smog if bypass my crank position sensor?
So i got an issue I'm putting a obd2 h22a4 into a obd2 integra with a jumper harness obd1 ecu .will this work
Yea, and Ecu they’re all the same
so quick question. I have a d16z6 motor (someone swapped it in before me) and the pigtail isn't blue. its green. its also a P2P ECU. would it basically be the same? and how would I find out which wire is which or am I kinda screwed?
Thank you. I couldn’t find and position sensor that fit the D16A6 anywhere. Luckily I found your video. The build that I will install into my 2000 Honda Civic will be a D16A6 engine block, D16Y8 head. and I will also be using a Y8 wire engine harness and Y8 ECU. How is your car running after this modification?
I don't have the car that I did this mod to anymore, but for the time I did have it, it had no problems. No check engine light and it ran great!
CtrlAltDefeatTV sweet thank you.
Hey I’m swapping a OBD1 JDM B20B into my 2000 Integra and the wires on my car don’t color match the wires listed in this video Please help!!
Mine do except the black wire its white
Is this to on bypass the knock sensor or crank pos sensor
It's to bypass the crank position sensor, located on the crankshaft. I may have said knock sensor and that was just a slip up on my part
So a b20b non vtech no swap just that p1337 code then I should have no problem...? Cause I do have a crankshaft positioning sensor. But I dont want to replace it. Lmk if its possible thanks man your are awesome
Yes, it'll work. Just clip the wires that are described in the page I linked to you and you should be good. A faulty sensor, a working sensor, or a missing sensor. If you clip the wires correctly and splice the wires correctly, it'll work as it only takes the signal from the distributor.
ff-squad.com/wp/?p=309
@@CtrlAltDefeatTV I have a Honda too with check engine light and code P1337. Would the instructions work for this too? Thanks!
Running a b16a2 obd2b to obd1 jumper harness ran a hondata and code 4 showed up wouldnt let me pass 3,5k should this help me out ?
Did you figure it out bro ?
Hey what's up man love the video! I'm having issues it's throwing a code that is the crankshaft position sensor I have a 1994 Del Sol that I swapped a d16z6 2A b20b low comp. Z6 is p28 b20b is p75 how do I bypass the sensor on this harness if my b20b even has one
Did you figure out the problem?
I just did it how you did and I'm still having the same issue code #4 crank position sensor I'm on my 5th brand new distributor. Help really appreciate it thank you
Same have you figured anything out ???
Yooo there’s a sensor by the crankshaft pulley on the bottom of the timing cover ! Try to replace that .
Crank position sensor is way!!!! Different from crank flux sensor (ckf)
5th goddamn
I bought a 97cl 2.2 with a broken key missing the resistor piece so it won’t start. Would this trick my ecu into running the car? Or could I start it on my p2p manual ecu?
You can swap the ecu to 96 cause it didnt have a chip/key imobilizer
Where do you connect the black wire on the dizzy?
This worked but now it caused a p0118 code? Im so confused, I reverted it & the p0118 code went away but im back to square one
I have a odb1 😩
I did this on my 1998 Honda CRV.it solved the issue with how the car was running but now sometimes it will randomly cut off and we'll have a hard time getting it to crank on. The fuel pump is making a loud noise to. It is a new fuel pump though. Did I mess up some of the wiring?
Would this work with a 99 integra with a b20b swap. Used to have a b18
I believe it will
ff-squad.com/wp/?p=309
Joel Johnson jdm b20b?
I have a b20 in my 2000 integra and I'm currently looking into changing my oil pump to install the crank sensor. Needless to say the mechanic wants to charge me quite a bit. I need to try this. It will save me so much money if I can bypass so it turns off my check engine. Living in California sucks with all these emission laws. Otherwise i wouldn't have to worry about any of this.
@@i.e.4165 did you ever try it Im about to do this swap and this is the onlt hing holding me back!
@@oldirtydave22 are you doing a b20 swap? I've been super busy but I have my wire guy coming down tomorrow hopefully he can do it. I personally don't want to mess with it because I'm worried I'll mess something up lol. But he did tell me it was posssibe. But he kind of recommended me taking it to have the oil pump installed with crank sensor anyways. So idk what to do quite yet.
CAn you tell me which sides you use for wiring diagram ?
What web page are u using I have a 99 accord I did a f23a1 jdm swap and don't have the sensor and need to know witch wires I need to do it to mine are different
I used this site here
ff-squad.com/wp/?p=309
And actually, I don't believe this trick works for accords. It's only for del sols, civics, CRV's, and integras with a D or B series engine
Yea this bypass trick doesn't work for the prelude/accord platform. Those vehicles have extra ckf wiring that makes the bypass trick impossible.
@@jkatmanso what do I do then
@@wes5118 you'll have to install ckf components to please the OBD2 ecu or convert to OBD1
99 5:25
Yo on my b20 swapped 2001 Acura integra gs I matched all the pins for obd2 cfk bypass trick n it didn’t work but the wires are white n red /white instead of white/red n black it didn’t work emissions coming soon any suggestions ?
Did you find a solution to this ?
@@shneshusns1319late to the reply but the black wire in the 2001 integras is white instead. Same process.
I have a D16A will this work?
Having this problem on my 92 EG!!!!! Had a b20z2 in it and think it’s the d series harness that was hacked for it and had a check engine light flashing and code was coming up as speed sensor welp blew that motor up and am in the process of swapping another b20z2 in it and noticed that my old engine didn’t have the crank sensor and the new one did! So i got the wire with the connector and traced it all the way back to the ecu come to find out my p75 ecu doesn’t have that blue plug you were splicing off of!!! WTH?!? Any suggestions on how to run the crank sensor off the dizzy with the p75 ecu??? Trying to get the car running by the end of the week and really want to solve this problem!
Did you figure out your problem after?
I did what you said on obd2 a
So b20b obd1 swapped into my 2000 integra attempting this because of the p1337 code but wire next to the white and red 1 is white not black would it still be the same thing
Did this work for you? Or how did you bypass
@@Nq-76osorry to chime in but yes 2000-2001 Integra's the back wire is white instead. I just did it on mine and the CEL and code went away for the CKF sensor. Getting snogged in the next couple of days .
I tried this and I wasn’t able to scan the car no longer did I do something wrong ?
unfortunately I think you did. when I did this mod, I was still able to scan for codes with my OBD2 scanner
Check all fuses.I forgot what fuse but one can blow under the dash on 96-00 civics and the scanner wont work.
Ever fix it ?
Hey I really need help on my 96 prelude, it’s obd2 and on the blue plug on my ecu it is missing the pins for c1 and c11. Looks like it never had any wires going there, it’s the only reason my car won’t start. I have a obd1 block and tried mounting those magnet type sensors into a position that might work. Would rather bypass it instead of rigging something up so it will run
I haven't messed with an H22 or H23 before so I can't tell you anything for sure. But from what I'm reading the USDM H series engine in the prelude uses the crank sensor for timing and the JDM model uses the sensor in the distributor.
Could you swap the oil pump and trigger wheel from your OBD2 over to your OBD1 block? Or run a JDM harness and ecu?
honda-tech.com/forums/honda-prelude-4/jdm-h22-crank-posistion-sensory-bypass-help-3043101/
www.preludeonline.com/f60/h22a4-jdm-h22a-obd2-concerns-264709/
Procrastinators the bypass trick doesn't work for the obd2 prelude/accord platform as these have more wires at the ckf sensor vs obd2 civic/integra ckf's. I have a h22 swapped obd2 Accord myself.
@@jkatman so what should i do lmao
@@wutcamber only real 2 options is to convert to OBD1 or swap on an OBD2 oil pump setup with CFK sensor etc.
2 year old video but I got a question, will doing this throw a CEL?
It shouldn't, it didn't for me. It actually fixed the CEL I had and ran smoothly
We clip c1 and c11 to prevent CEL. Without clipping them the computer throws a code because it’s getting signal from another wire.
In japan they use white wire ground or green and in Canada/USA they use black.
I’m confused the write up says to depin or cut the wire indicating that it’s cut on the ecu side.. but your saying cut after the splice ?
Yeah, the write up is a little confusing/misleading. You don't want to cut or depin the wire between the splice and the ECU plug - that would defeat the purpose of this fix.
You want to cut the wire after the splice so there isn't an interfering and confusing signal coming from the sensor side wiring in the engine.
CtrlAltDefeatTV I tried both ways but I kept getting the trouble code, in the end I had to re connect the wires to the ecu and left the wires spliced. For some reason that worked for me 🤷♂️ d15b7/y8 mini me, automatic 99 ex
By doing this by pass would this make my tach work ? Hasn’t worked cause no crank sensor from wat I believe runs and all just rough kinda
So this should bypass my p1337 code for crankshaft positioning sensor. I need to pass smog. But this is keeping me from doing so.
If you have a honda vehicle with an OBD2 D or B series engine, then yes it should work in bypassing that crank sensor code.
Did you ever smog it and if you did , does this mod pass smog ?
@@vickyenriquez1033I'm about to find out in the next couple of days.
Would this fix my no signal to injectors on my 97 2.2 cl
Unfortunately no, it will only bypass the crank position sensor.
Your a homie
I need your help what's a good way to talk!?
could this work if i broke my crank sensor on the back of the block. instead of replacing it can i just bypass it
back of the block? This bypass only works if your crank sensor is broken or missing. It's the sensor mounted right near the crankshaft on OBD2 vehicles
Has anyone done it on a 00 honda prelude obd2a?
Gracias por tu apoyo
Plz let me know if you know this will bypass it forsure
SO I AM USING B20B TO MY 99 EK USING THE EK HARNESS. I CAN USE THIS BYPASS VIDEO. FOR CRANK HARNESS
Raj Gounder did you get it ? Did you fix it ?
You saved me so much fucking around thank you so much
Please what is the implications of by passing the CKP?
Your ecu is programmed to use a sensor that determines the position of the crankshaft. The position can be determined in other ways but without the sensors that would be on the oil pump, the ecu throws a cel and even a flashing cel because it does not know the position of the crank
Name the page?
So do I plug it back in or do I leave it unplugged after I’ve wired it up?
omar ortiz 🤦♂️
Does it work on a 92 integra
You don't need to do this on a 92 because it came obd1 from the factory.
Hello, what is the purpose of bypassing ckf? Thanks
Japanese engine don't have ckp sensor
@@elnenegordo3688 Mine does, d15b engine. Timing belt snapped and took the crank sensor with it, now after replacing the crank sensor my check engine light came on, and I'm getting a code 54 CKF - crank fluctuation sensor. I'm considering doing this to see if it gets rid of it
@@rookie1178did it work?
@@moe_trill Yup, check engine light turned off and drove fine until I sold it a year later
Does this work on crv? I want to Run a 96-98 CrV engine in 99-00 Crv?
You shouldn't have to do anything to run that engine in your 99-00 CRV. A 96-98 is OBD2 and will have a crank position sensor already on the block.
@@dl2026 lol, I guess you could do that and it would work. The sensors in my experience hardly ever, if at all, go bad though. You could always snag one from the junkyard too for pretty cheap.
What if you have an obd2b to obd2a conv harness
did you ever find the answer?
Does this work for obd2 accords
I'm not sure, I've only done it on D series engines. Someone else commented in another video that it didn't seem to work on H series engines for their prelude, and I'm guessing F series engines might be similar.
Nope. there's extra wiring for the CKF accord/prelude platform. only works for civic/integra platform.
I was watching this for my 01accord f20b swap this does not work and now idk what to do and I can't find anything online about the accords it's all civics and Integra
Can i do it on my 2009 acura tsx?
You don't have to do this trick on a TSX. This trick is for OBD2 civics/integras/CRV/Del Sol's with an OBD1 or JDM bottom end blocks without the ability to run a crank sensor.
Your TSX and any engine you could do a stock replacement with are all OBD2
where did you connect the other 2 wires to
Nothing he kills em
You dont even need to run nothing to the dizzy u can do it all from the ecu plugs
You know if this will work with a honda accord 95
What are you trying to do? A 1995 accord is a OBD1 which doesn't require a crank position sensor. So you don't need to bypass anything.
@@CtrlAltDefeatTVhow would I do it with a 97 accord
Will this work with a standard knock sensor. Not a crank knock sensor harness?
bro where is the link in the description
www.ff-squad.com/technet/ckftrick.htm
CtrlAltDefeatTV yea it didn’t work man idk =\ 4 more months till emissions fml
This is awesome 🤩 thanks 🙏
This process would it work for a Honda Accord 98 because I have the same problem knock sensor
My plugs are red not blue, I have a 99 Acura TL with the Honda Inspire jdm motor swap
I believe this method only works with D and B series engines. Someone else commented about a H series not having these wires and I believe H and F series don't have these wires, or don't have these wires in these particular locations
OK so let me get this right OBD2 is what I have my 99 CRV is an OBD2. It should work even knowing that I do have a sensor for it that's what I want to know that I can go head and crimp the wires through the diagram you have and that will allow me to bypass the Crankshaft positioning sensor that's what I think I'm trying to ask lol
Yes, if you do that, it will bypass the crank position sensor.
Just make sure your tapping it into the obd2b pinouts locations
BUT, WHERES BARRY!? So you can just do the bypass even with the sensor still mounted? Just so it doesn’t throw the CEL
Tried this last night.. now my car is in limp mode..! 😭😭 can anyone help me out?
Did you figure it out bro
This did not work
This is very interesting I'm not a big fan electrical but it also seems too good to be true. I just hope bypassing this stuff doesn't Resort other problems up the road from them little evil engineers😃
Fucks up in the first 5 seconds, doesn't edit it.
Another example of a YTuber knowing absolutely nothing what they're talking about, simply converting googled content into video form.
EVERYTHING he says is incorrect. It's not a Knock Sensor, its a Crank Fluctuation Sensor. The distributor sensor doesn't "mimic" anything. It's the same type of sensor as the one found on the cranks on OBD2 cars. Doing this "trick" will make the car drivable, but will disable the ECUs live ignition tuning strategy and cause preignition.
Queue the hordes saying "I did this and my car runs fine derp".
Much like OBD2 added a downstream O2 sensor to monitor the performance of the cat converter, a Crank sensor was added on the crank to monitor preignition. The Crank Position Sensor on the distributor infers crank speed based on cam speed. Cams spin at 1/2 of the speed of the crank because they twice the size of the crank sprocket they are connected to via the timing belt. In cases of preignition, the crank will very slightly (in tension of the timing belt) outrun the cams (in terms of the relation in speed they are supposed to have).
Your engine makes the best torque right at the ignition timing advance point before preignition. So the CKF strategy advances ignition timing until it detects preignition, then backs it off to maximum torque.
With this bypassed, it will never find an occurrence of preignition and will advance timing to the max allowed, which means you're driving around with preignition, wasting gas, power, carbonizing the combustion chamber and emitting excessive amounts of NOx. If for whatever reason you feel justified running this "trick" long term (running an OBD1 engine on an OBD2 car), run the highest octane avaiable, prefably 93. You'll be very unlikely to be experiencing preignition.
Do these also work in the Honda Accord 97 with 1994 engine swap
My crankshaft sensor broke on my stock y7 will this fix the cel light
i have question i spliced the wires and it still throwing that code and not running correctly i have a d15b vtec
Which wires are they if I’m using a 97 A/T Crv with oem b20b4 ecu
Can this also work on obd1? Please i need help
can i use this trick to my civic vti 96 stock engine?
Will this work for a 99 honda civic LX?
can i use this trick to my civic vti 96 stock engine?
Would this work on my 2000 Honda accord???