Car wont start hot - Page 3

Dan Swanson · 10-03-2008, 08:57 PM

It looks like you have done almost everthing. What done to check for vapor lock and or lack of fuel? The fuel filter, the inlet air elecronics?the

I have drivena Supra like yours for almost 150K miles and have never had problem like you describe. I had the head off mine and can not get it running. I gave up and have posted a thread to sell it.

Sorry am not much help. I am sure that someone will come to your aid with a good idea.

Dan Swanson

carfanatic89 · 10-14-2008, 03:59 PM

OMG I finally think I found the problem. I got this wild hair to open up the ECU and I found a resistor that was burned up. Im so happy words cant even begin to describe. I had to stare at the ECU for about 10 mins before I saw it. I literally jumped out of my car and ran around the parking lot. lol All the others are blue and the one burned up is white with black burn marks under underneath and from the edges of the resistor down the wires to the circut board. Here a pic my cameras kinda fuzzy but you can see the difference.

carfanatic89 · 10-14-2008, 06:39 PM

What do I do now. I don't know anyone around where I live to fix this, should I try a computer store? I would like to fix i myself, but I dont know how to solder on circuit boards. Or take the old one off. As a matter of fact how is anyone gonna know what kind of resistor it is. I kinda dont want to by a used one from a salvage yard, it might be in the same condition this one is in, and I damn sure dont have 500 for a refurbished unit. Any advice welcome.

CyFi6 · 10-14-2008, 06:51 PM

Try to get a clearer picture of the resistor, or tell us the color bands on it. Using that you can find the resistance. Then ohm it out and make sure it really is bad. Im sure a computer store would be able to do it for you, it isnt difficult, and you can just get a replacement resistor of the same value from anywhere like radioshack. If you cant see the colors you are going to have to find someone willing to take theirs apart and get them for you. Make sure that resistor is all thats bad on the whole board, seems like if that would burn out something else might have, and soemthing else might have in one of the chips. You just never know.

carfanatic89 · 10-16-2008, 07:46 AM

Well its one of the ones that doesn't have color bars on it, its just a solid color (blue) with numbers and letters on it. I ran the ohm meter over it and it read Infinite so I know its bad. I took the ECU to an computer electronics store and they said they could fix it easily, only 20 bucks. Which is cool, but theres a problem. I took the ohm meter to one side and it runs to the output terminal for the FPR, which makes no sence how did my car run without a signal voltage to the FPR to tell the relay to turn on??? Im in the dark on that one. Ima get my computer back friday, and put her in and see what happens. Ill keep yall posted

CyFi6 · 10-16-2008, 07:49 AM

Good to hear they are able to fix it, hope it fixes your problem.

Dan Swanson · 10-16-2008, 05:52 PM

Carfanatic89.

I am glad to hear you my have found a cheap solution. I am looking forward to hear the out come.\

Dan Swanson

carfanatic89 · 10-17-2008, 08:37 PM

This is my luck. not only did it not fix the problem, but but made it worse. Now my car wont start. It will start rev up as much I want to like 4000 RPM then putters down and dies. Then wont start and I have to wait 30 mins to do I again. Another thing when I brought it to the computer store they couldnt tell the ohm of the original resistor. All it had was a 3 R on it so they guessed it was a 3.6 ohm rating. If I post a better pic of the ECU will somebody open their ECU with the same part number and tell me the was the resistance of the resistor. I would greatly appreciate if someone would. The part number of the ECU is 89661-14091. I would ask somebody around where I live to do this, but I own the only supra in the area.

Dan Swanson · 10-18-2008, 12:34 AM

carfanatic89,

Sorry, too hear the bad news. If you can post a better pic I will take alook at my ECU and get back with.

Dan Swanson

carfanatic89 · 10-22-2008, 11:41 PM

I dont think im gonna need that, sorry, but I think im giving up on the supra. My dads sick of me not having a reliable car and is giving me his 1980 ford 150 4x4. So the supra is gonna sit for awhile till I can figure out what im gonna do with it. I might keep it and wait till I have the money for a 1jz-gte swap. Or I might sell it. I apreacate everybodys help. I just can make sence of whats wrong with it and im sick of dropping every dime I make into it.

10-03-2008, 08:57 PM	#21
Dan Swanson Stock Join Date: Oct 2008 Location: Orlando, FL Posts: 28	won't run It looks like you have done almost everthing. What done to check for vapor lock and or lack of fuel? The fuel filter, the inlet air elecronics?the I have drivena Supra like yours for almost 150K miles and have never had problem like you describe. I had the head off mine and can not get it running. I gave up and have posted a thread to sell it. Sorry am not much help. I am sure that someone will come to your aid with a good idea. Dan Swanson

10-14-2008, 03:59 PM	#22
carfanatic89 3" Exhaust Join Date: Apr 2007 Location: Waco Posts: 164	OMG I finally think I found the problem. I got this wild hair to open up the ECU and I found a resistor that was burned up. Im so happy words cant even begin to describe. I had to stare at the ECU for about 10 mins before I saw it. I literally jumped out of my car and ran around the parking lot. lol All the others are blue and the one burned up is white with black burn marks under underneath and from the edges of the resistor down the wires to the circut board. Here a pic my cameras kinda fuzzy but you can see the difference. __________________ Supra Engine Powered Dragster

10-14-2008, 06:39 PM	#23
carfanatic89 3" Exhaust Join Date: Apr 2007 Location: Waco Posts: 164	What do I do now. I don't know anyone around where I live to fix this, should I try a computer store? I would like to fix i myself, but I dont know how to solder on circuit boards. Or take the old one off. As a matter of fact how is anyone gonna know what kind of resistor it is. I kinda dont want to by a used one from a salvage yard, it might be in the same condition this one is in, and I damn sure dont have 500 for a refurbished unit. Any advice welcome. __________________ Supra Engine Powered Dragster

10-16-2008, 07:46 AM	#25
carfanatic89 3" Exhaust Join Date: Apr 2007 Location: Waco Posts: 164	Well its one of the ones that doesn't have color bars on it, its just a solid color (blue) with numbers and letters on it. I ran the ohm meter over it and it read Infinite so I know its bad. I took the ECU to an computer electronics store and they said they could fix it easily, only 20 bucks. Which is cool, but theres a problem. I took the ohm meter to one side and it runs to the output terminal for the FPR, which makes no sence how did my car run without a signal voltage to the FPR to tell the relay to turn on??? Im in the dark on that one. Ima get my computer back friday, and put her in and see what happens. Ill keep yall posted __________________ Supra Engine Powered Dragster

10-16-2008, 05:52 PM	#27
Dan Swanson Stock Join Date: Oct 2008 Location: Orlando, FL Posts: 28	Car won't start hot Carfanatic89. I am glad to hear you my have found a cheap solution. I am looking forward to hear the out come.\ Dan Swanson

10-14-2008, 06:51 PM	#24
CyFi6 3" Exhaust Join Date: Oct 2007 Location: SLO Posts: 234	Try to get a clearer picture of the resistor, or tell us the color bands on it. Using that you can find the resistance. Then ohm it out and make sure it really is bad. Im sure a computer store would be able to do it for you, it isnt difficult, and you can just get a replacement resistor of the same value from anywhere like radioshack. If you cant see the colors you are going to have to find someone willing to take theirs apart and get them for you. Make sure that resistor is all thats bad on the whole board, seems like if that would burn out something else might have, and soemthing else might have in one of the chips. You just never know.

10-16-2008, 07:49 AM	#26
CyFi6 3" Exhaust Join Date: Oct 2007 Location: SLO Posts: 234	Good to hear they are able to fix it, hope it fixes your problem.

10-17-2008, 08:37 PM	#28
carfanatic89 3" Exhaust Join Date: Apr 2007 Location: Waco Posts: 164	This is my luck. not only did it not fix the problem, but but made it worse. Now my car wont start. It will start rev up as much I want to like 4000 RPM then putters down and dies. Then wont start and I have to wait 30 mins to do I again. Another thing when I brought it to the computer store they couldnt tell the ohm of the original resistor. All it had was a 3 R on it so they guessed it was a 3.6 ohm rating. If I post a better pic of the ECU will somebody open their ECU with the same part number and tell me the was the resistance of the resistor. I would greatly appreciate if someone would. The part number of the ECU is 89661-14091. I would ask somebody around where I live to do this, but I own the only supra in the area. __________________ Supra Engine Powered Dragster Last edited by carfanatic89; 10-17-2008 at 11:02 PM.

10-18-2008, 12:34 AM	#29
Dan Swanson Stock Join Date: Oct 2008 Location: Orlando, FL Posts: 28	car won't start carfanatic89, Sorry, too hear the bad news. If you can post a better pic I will take alook at my ECU and get back with. Dan Swanson

10-22-2008, 11:41 PM	#30
carfanatic89 3" Exhaust Join Date: Apr 2007 Location: Waco Posts: 164	I dont think im gonna need that, sorry, but I think im giving up on the supra. My dads sick of me not having a reliable car and is giving me his 1980 ford 150 4x4. So the supra is gonna sit for awhile till I can figure out what im gonna do with it. I might keep it and wait till I have the money for a 1jz-gte swap. Or I might sell it. I apreacate everybodys help. I just can make sence of whats wrong with it and im sick of dropping every dime I make into it. __________________ Supra Engine Powered Dragster

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