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Discussion Starter #1
Thanks in advance for everybody's help, I have a 1984 Supra 5MGE w/1130000+ miles. The car was running great then after crossing a small depression in the road it started missing. The check engine light came on and I limped the car almost home. The car could only be driven w/o touching the accel. If I did the engine would immediatley start to die. Then it finally died and wouldn't restart. After sitting in the garage for about a week I could get the engine to fire when turning it over but as soon as the key was released it would die.
I pulled the fault code and it indicated the ECU. A Toyota serv. man said they rarely go bad but check for loose connections or loose ground. I did and all seem ok. I have checked for spark(ok at igniter and #1 plug). I checked valve timing and belt(ok and belt was replaced not long ago). I replaced the fuel filter and ran some gas out into a container (It looked ok). Approx. 5 yrs. ago I had a problem with the fuel circuit opening relay and it was replaced. I tested it, per the Haynes Man., Between terminals STA and E1 I get 29 ohms not the 30 to 60 ohm range and between IG and Fc 150 ohms instead of 80 to 120 ohmm range. Is this enough out of the range to be the problem?? I also noticed when the fuel pump check connector was jumped I did not get a "whirring" soound from listening at the filler neck. It was an "uneven sound" with a recurring clicking noise??? Yet it did pump gas into the container? So, after all this, is the cutoff relay resistance out of range far enough to be the problem or do I have to drain a gas tank 3/4 full and replace the fuel pump?
A few more quest. where can I get parts online and where are the online TSRM's located?
Thanks, Tom
 

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Sounds like your fuel pump is on its last legs. It may pump fuel, but that doesn't mean it's pumping enough fuel under load. The best way to check is to put a pressure gauge on the fuel rail and watch what happens when you try to start the engine; fuel pressure should be a constant 35psi or so.
 

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Supra007 said:
Thanks in advance for everybody's help, I have a 1984 Supra 5MGE w/1130000+ miles.
You have a Supra with 1,130,000 miles on it? One million, one hundred and thirty thousand miles? Holy crap!

Oh...and *ahem* what's up with the username? Hmmmm..... ;)

(hope you get your fuel problem figured out. Norbie gives EXCELLENT advice)
 

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SupraRacer007 said:
Oh...and *ahem* what's up with the username? Hmmmm..... ;)
And it starts :wink:. Next thing you know there is gonna be a zanktwo :lol:
 

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Tell me about it...talk about a lack or originality. I chose my name because it's my screen name on AIM. (Well, that and I think James Bond is cool).

I think a Mk2 should be used in the next James Bond flick - guns inside the pop-up headlights would be schweet. :2gunfire:
 

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I knew supras lasted a while, but a million plus miles, thats gotta be some kinda record! :)
 

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you know whats funny is that there is a honda plant in marysville about 30 minutes from columbus, and they had a celebration for being open for so long, but this guy there had an accord that had a million miles on the chasis, he was on his 4th engine and 3rd transmission, i think, i can't remember exactly, but that is a lot of fricken driving...oh yeah and the guy bought it new...
 

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Discussion Starter #8
Supra Fuel Prob

Thanks for the responses...yes I added a few extra digits to the mileage. I'm hoping for a response to the second part of my quest.
 

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No worries about the post you made. I received your email just now...and I was just bustin' your chops about the name choice etc.

I hope you get the fuel problem solved. It looks to me like something has come loose or unplugged. Seems like a very strange coincidence that you hit a bump, and soon after, the problem occured. As for where to buy parts for the Supra online, there are a few sources depending on what you need:

http://www.rabidchimp.com

http://www.cyberauto.com

http://www.classicgarage.com

http://www.suprasport.com

For OEM Toyota parts...
Jay Marks Toyota (contact: Jeff Watson)
http://www.toyotaworld.com/parts.htm

For salvage parts...
Nix99 (ask for Shawn or Don)
http://www.nix99.com

Most of this information is in the CelicaSupra.com FAQ section:
http://www.celicasupra.com/mkiicontacts.htm

Also, the only TSRM I know of online is this one (there could be another):
http://www.cygnusx1.net/supra/library/TSRM_MKII/index.html
[This particular one is for a 1986 Model]

Best of luck....and welcome to CelicaSupra.com forum ;)
 

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I had and am having the same problem with my car. Last year I drove over some rough road. It immediatly began missing and the check engine light came on. I had to drive home in second gear most of the way. It would run, but it missed and ran like crap. I tried replacing the fuel pump in November, I think. The fuel pump didn't fix the problem. I had to take off the intake and clean out the injectors. It ran fine after that. However, this time, it won't even start. I haven't had a chance to try cleaning the injectors again.
 

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This is a longshot, but maybe some crud in your gas tank became dislodged when you hit the bump and got sucked up into your fuel pump inlet filter.
 

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Dave A. said:
This is a longshot, but maybe some crud in your gas tank became dislodged when you hit the bump and got sucked up into your fuel pump inlet filter.
I think its called a fuel pump strainer :wink:

Supra007 - even though you can still hear your fuel pump running (kind of), doesnt mean its working properly. I had the same problem on my mk2 last year, my fuel pump went out. I replaced it and problem solved.
 

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Discussion Starter #13
84 Supra fuel pump pressure test $%##&

To Norbie and everyone else who responded,
I searched my stuff for a leftover oil pressure gauge as per Norbie's sugg. NO LUCK...My old pressure gauge was for mech. fuel pumps and only goes to 10 psi...Wasted all of yesterday visiting auto parts stores to buy a gauge GRRRR all gauges now come with fitting to attach to Schrader valve on new fuel inj. sys. Can't find Schrader valve with metric fitting for fuel rail. No Banjo bolt and fitting avail. Finally took out cold start bolt (After a week sitting idle there was still pressure in the rail) to match thred and pitch. Found bolt and nut to make an adapter, per Haynes man., that I now have to drill down through bolt, but still don't have pressure gauge to hook up to it. HELP
 

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ok i think i am having about the same problem as supra007. I jumped the fuel pump check connector. after i do that I am supposed to hear the fuel pump correct? that is if it is working. On my 84 i did the jumper and could here the fuel pump pretty good. but when i did it on my 86, i heard a clicking noise, also i discovered that i am leaking fuel at the bottom of the fuel filter. or what i think is the fuel filter. could someone tell me where this is? I can not find it in the TSRM. from what i can tell it is on the drivers side. on the lower part of the engine.


any help would be great.


thanks jeremy
 
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