Life saver bro triple A cancelled my appointment twice in the middle of a good ol Florida thunderstorm. Found a paper clip and tried this, after a couple tries it started right up. Thanks 👍🏽
Well, this is timely and useful information - thank you. Parked my 1991 SC400 over at a buddy's house over a year ago. Went to go get it and a no start condition. I put fresh fuel in the car - still nothing. Starting fluid got it to start but not run, so the problem is fuel related. I will try this, and hopefully I can get it to drive to the house where I have tools to actually work on it. It may still be the fuel pump since fking alcohol in the gas attracts water and allows sh!t to rust even with Sta-bil added to it, but this is certainly worth a try. :) I was not looking forward to pulling/towing the car since the front spoiler/cap would need to be removed to avoid damaging it. I would have paid for a tow truck, but it would have to be pulled out of his back yard anyway since his gate is too narrow for a tow truck and it's only a couple of miles to the house. I would say that the original problem why I parked it was that I had too many cars, boats, motorcycles, etc, at the house - but let's be honest - the real problem is that I live in the city, and the fking Nazi city code enforcers were going to make my life hell if I didn't move a few... like anyone can have too many boats, cars, and motorcycles. lol
Follow up... Bought an inline fuse holder and jumped the correct connectors, and fired her right up and drove home with zero problems... Saved a tow fee or at least major time and work dragging it home after removing the front spoiler. Many thanks! :)
@@barking.dog.productions1777 I know this post is 9 months old but just in case you are still driving it with a wire or paperclip. Instead of buying a new ECU, you can do what is called ECU Bypass. Its super simple! You can look it up on one of the Lexus forums.
@@mattm2948 Thanks Matt. I'll look into that. I just used the paper clip to get it home. It had been sitting for almost a year, so once I started cleaning contacts and, etc everything went back to working normally.
@@kingmike8031 i don't recall exactly but the y were under hood on top of the motor and just 2 wire connector an IO found it on The it internet. it always worked fine after that ... no jumper
Ok.. This is what I found. If you have a short to ground somewhere to the fuel pump and jumper B+ to Fp, you can cause a fire and possibly burn your car to the ground as this Fp wire on the OBD1 port is not fused !!! Remember that !! Make sure your jumper from B+ to Fp is fused !!!
Ey i got an ls 400 that wife lost the fob still got the metepal metal key part car would r turn over but no start due to the ecu im suee sure anywa after a bout 9months of trying to figure it out toolk out the glove box ecu and and a relay under 5he left side i thought was open circuit relay but was te searts put it all back found this video beforee rthe car would turn over now it wont due that any ideas wwa to check ao i ca try rtye fo b+ trick thanks or how do i get on s the ls or lexus forum
How boss you have to help out..I took my ecu out after installing new fuel pump....I had 2 ecu's one original that I took out and placed inside my home it sat there for 8 years because I bought a used one from Ebay..car ran good with used one...remember then this car sat for 8..so I sent the ecu that was in car to ECUREPAIR on Ebay they sent it back...said It had corrosion..went to auto computer solutions on Ebay they said send the original so i did..got it back put it in car and the car runs like shit and catalytic converters are glowing
It's been almost two years since you've posted this. Don't know if you still have the car, but did you ever determine what is making that grinding sound? From my experience it sounds like bearings are going out, most likely on an accessory, most likely the alternator (also perhaps the source of the "whirring" sound). Cheers!
My 2012 tundra had a VSC lamp that tripped after swapping my steering rack... diag bricks don't reset it, paperclip jumps so.... I had a BMW 318 that had the a/c recharged but it won't allow the compressor to turn on and stick in freon if pressure is too low, PAPERCLIP JUMP. Please tell me that you know a "proper" dealer tool will do the exact same thing, albeit electronically.
Life saver bro triple A cancelled my appointment twice in the middle of a good ol Florida thunderstorm. Found a paper clip and tried this, after a couple tries it started right up. Thanks 👍🏽
Well, this is timely and useful information - thank you. Parked my 1991 SC400 over at a buddy's house over a year ago. Went to go get it and a no start condition. I put fresh fuel in the car - still nothing. Starting fluid got it to start but not run, so the problem is fuel related. I will try this, and hopefully I can get it to drive to the house where I have tools to actually work on it. It may still be the fuel pump since fking alcohol in the gas attracts water and allows sh!t to rust even with Sta-bil added to it, but this is certainly worth a try. :)
I was not looking forward to pulling/towing the car since the front spoiler/cap would need to be removed to avoid damaging it. I would have paid for a tow truck, but it would have to be pulled out of his back yard anyway since his gate is too narrow for a tow truck and it's only a couple of miles to the house.
I would say that the original problem why I parked it was that I had too many cars, boats, motorcycles, etc, at the house - but let's be honest - the real problem is that I live in the city, and the fking Nazi city code enforcers were going to make my life hell if I didn't move a few... like anyone can have too many boats, cars, and motorcycles. lol
Follow up...
Bought an inline fuse holder and jumped the correct connectors, and fired her right up and drove home with zero problems... Saved a tow fee or at least major time and work dragging it home after removing the front spoiler. Many thanks! :)
@@barking.dog.productions1777
I know this post is 9 months old but just in case you are still driving it with a wire or paperclip. Instead of buying a new ECU, you can do what is called ECU Bypass. Its super simple! You can look it up on one of the Lexus forums.
@@mattm2948 Thanks Matt. I'll look into that. I just used the paper clip to get it home. It had been sitting for almost a year, so once I started cleaning contacts and, etc everything went back to working normally.
barking.dog.productions1776 what contacts did you clean to get it back to normal?
@@kingmike8031 i don't recall exactly but the y were under hood on top of the motor and just 2 wire connector an IO found it on The it internet. it always worked fine after that ... no jumper
Thank you a lot! it started my Lexus ls 400 ! i was planing to tow the car!~
Dude sounds like Denzel 😆
Lexus training day!
This is the most McGuyver hack. Thanks Alonzo Harris 😂
Check your ECM for blown electrolytic capacitors. Notorious for them.
Thanks for the tip, it got me home.
Ok.. This is what I found. If you have a short to ground somewhere to the fuel pump and jumper B+ to Fp, you can cause a fire and possibly burn your car to the ground as this Fp wire on the OBD1 port is not fused !!! Remember that !! Make sure your jumper from B+ to Fp is fused !!!
If your rad has survived till now then it has very little time left. They like to go bang once they go brownish.
Thanks this helped me with my 92 1jz model
Would the ecu fuel pump be the reason of a draining battery ?
Thank you worked on my 91 jzz30 soarer
Did the fuel pump kick on as soon as you jumpered B+ to Fp ? Or did you jumper and then turn the key on to make it happen? Let me know. Thanks.
So I just tried this, and my SC400 fuel pump turns on when I turn my key.
Darion McClinton As long as there is no short on your Fp wire, there will be no fire !! Make sure to fuse your jumper.
Yeah I started it a few times and no fire started.
Darion McClinton As I said.. As long as there is no short. Remember.. That circuit is not protected.
Ey i got an ls 400 that wife lost the fob still got the metepal metal key part car would r turn over but no start due to the ecu im suee sure anywa after a bout 9months of trying to figure it out toolk out the glove box ecu and and a relay under 5he left side i thought was open circuit relay but was te searts put it all back found this video beforee rthe car would turn over now it wont due that any ideas wwa to check ao i ca try rtye fo b+ trick thanks or how do i get on s the ls or lexus forum
Hope it's doing ok. I thought those were something for Windows. I guess the ones at passengers feet are for the windows?
I am going to try this today
do you know where the AC relay is located on the sc400 ??
please help..
Hey bro have problem with my sc 400 think help me ill tell you what happened
fracking awesome! thanks man!
That helped me all the way out. Racking my brain..
How boss you have to help out..I took my ecu out after installing new fuel pump....I had 2 ecu's one original that I took out and placed inside my home it sat there for 8 years because I bought a used one from Ebay..car ran good with used one...remember then this car sat for 8..so I sent the ecu that was in car to ECUREPAIR on Ebay they sent it back...said It had corrosion..went to auto computer solutions on Ebay they said send the original so i did..got it back put it in car and the car runs like shit and catalytic converters are glowing
They were plugged huh
It's been almost two years since you've posted this. Don't know if you still have the car, but did you ever determine what is making that grinding sound? From my experience it sounds like bearings are going out, most likely on an accessory, most likely the alternator (also perhaps the source of the "whirring" sound). Cheers!
🔥
Ty. I'm trying now
Well I did this on my 1992 SC400 and my start didn’t start or crank and now it’s dripping fuel
How long did it last
I did this and the car ran. But it’s running rough, idling high, and rich. Any idea what can be happening?
running rough and high idle maybe because its supposed to be getting a lower fuel pressure at idle
Its 4 bolts for the seats. Change them.
Good ...Thanks.
I'm in Atlanta
I have 2jz ge fuel pump sound is coming and going coming and going
I did that test and the engine didn't started. I did the same test on the relay with the same result.
Mine is missing the fuel pump pin so now I'm really upset
Just 12v mod it and bypass the fp ecu
Aiight I'll try that
so i did this and my car started do i need a ecu or a new pump ?
I ended up doing a 12v mod for now while I’m waiting for my ecu thanks for your help diagnosing my car 👌
Hey can we meet i have a 1994 Lexus sc400
Thats how you dont do it
Huh? Why say that? You mean.. Use this to trouble shoot, but do not drive it around like this.. Is that what you are saying?
My 2012 tundra had a VSC lamp that tripped after swapping my steering rack... diag bricks don't reset it, paperclip jumps so.... I had a BMW 318 that had the a/c recharged but it won't allow the compressor to turn on and stick in freon if pressure is too low, PAPERCLIP JUMP. Please tell me that you know a "proper" dealer tool will do the exact same thing, albeit electronically.