Question about 1997 Toyota Supra

1 Answer

1994 Supra Turbo - electrical problem when weather gets above 100 F

And the engine misses terribly for 3-5 minutes. Not it happens constantly

Posted by on

  • jamesupra Jul 26, 2008

    For the last 7 years, the problem came about after driving ~45 min in heat. Last week, I fueled up at a Petro station and the problem started the next day when I started the car. I thought it was some low octane fuel so I've added 4 bottles of octane boost to no avail. I changed plugs and air filter today and the problem persists. So I'm back to the original nagging problem but I'm not sure about location or appearance of sensors. I'm considering taking it in to Toyota service next. What do you think?

  • jamesupra Jul 26, 2008

    For the last 7 years, the problem came about after driving ~45 min in heat. Last week, I fueled up at a Petro station and the problem started the next day when I started the car. I thought it was some low octane fuel so I've added 4 bottles of octane boost to no avail. I changed plugs and air filter today and the problem persists. So I'm back to the original nagging problem but I'm not sure about location or appearance of sensors. I'm considering taking it in to Toyota service next. What do you think?

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,586 Answers

Is it only when you first start it up, and then it clears up? Is this in the rain? What weather affects it? My 300ZX TT had problems like that in the rain sometimes when I first started it up. What I figured was that I was getting too much moisture on the mass air sensor and it was causing it to tell the ECU to fuel the engine incorrectly. Being a hot-wire MAF sensor, once it heated up and burned off the condensation, the fueling was controlled properly and I did not have the problem anymore. I don't recall offhand if the Supra also uses a MAF sensor or a MAP sensor to determine airflow though. Post up some more info, especially some details on when you notice the problem (weather-wise, as well as if the engine is cold or hot, etc) and we can try to go from there.

Posted on Jul 26, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 1994 Toyota supra the engine cranks up then goes dead


st tjis point you will have to test all the sensors through their range , it does sound like the ecm is shutting down, i have seen the airflow sensor cause such a problem and its been a while , also the tps and the iac controller, don't give up you'll find it

Dec 08, 2009 | 1994 Toyota Supra

1 Answer

Engine compatible


Yes. However it is a very expensive swap $5000 to $8000 to do it right. You will need the 1J or 2J engine, transmission, wiring harness, ecu, and alot of other pieces to do the swap. The engine brackets will need to be modified and you will have to upgrade your brakes. This kind of swap requires a good knowledge of the Toyota Supra and the engines. I do not recommend this swap for a beginner. A cheaper way is to take a 7M-GTE and upgrade the internals and turbo.

Jul 09, 2009 | 1987 Toyota Supra

1 Answer

Toyota supra turbo ran low on oil it locked up for a second


the chances are you have done the shell bearings on the cranck shat in or the big ends if it is a loud knocking noise or possibly the turbo (is their any smoke from engine bluey in colour if this is so engine has been damaged it could also be the camshaft too without hearing it it could be anything )hope i have helped you

Apr 01, 2009 | 1987 Toyota Supra

2 Answers

Loses of power and engine miss


it may be fuel pump ? how much fuel is in the tank ? these trucks are famous for their fuel pumps overheating when the fuel level gets below half or sometimes evem a quarter tank. if the fuel tank is full you may want consider replaceing the fuel filter (as a good routine maitenance procedure)and see what happens then.

Feb 14, 2009 | 1994 Ford Ranger Supercab

1 Answer

1991 toyota supra blue smoke from tail pipe when get of the gas


The intake valve guide seals are worn and are letting oil slip by under high engine vacuum--as when you let up on the gas. The only fix is to take the cylinder head off and replace the valve guide seals. This problem is pretty normal for an older car with high mileage. It will probably run just fine. Just keep checking the oil level and keep it topped up.

Feb 07, 2009 | 1991 Toyota Supra

1 Answer

Alternator charging problem


well if the alternator is not putting out at least 13 volts when it running most likly its bad i would take it some place and have it checked again

Jan 18, 2009 | 1994 Toyota Supra

2 Answers

Can I use a non turbo head on a turbo?


Yes the heads are interchangable. Best way to find out if stuff is interchangable is to go to Toyota dealer and compare part #'s

Nov 30, 2008 | 1989 Toyota Supra

3 Answers

When the supra is started for the first time lots and lots of white smoke comes out the exhaust for the first minute it drives me mad


Hi, sounds like you need to replace your valve seals or if yours is the turbo the sealing rings in the turbo are worn.
What happens is that oil over night or when the engine is stopped runs into the intake of the engine in small amounts then when the engine is started the oil is burnt hence white smoke.
Check each spark plug in each cyclinder to see is one of them or all of them charred with black burnt oil deposits.
In one plug has more than the rest you can be rest asured it is the valve seals.
If it is the turbo version it has to be the turbo sealing rings.
Best to replace the turbo in this case as it is only a mater of time before it goes. this as we always say is the warning light on it telling us that its days are numbered.

Nov 28, 2008 | 1985 Toyota Celica Supra

1 Answer

I'm having to get my Supra Mkiv's rear tracking redone every 6 mnths or so after constant speed hump driving. Problem seems to be getting progressively worst - what components are there that could possibly...


R2 bushing call tm engineering they make replacement bushing for the supra otherwise you will have to buy all new suspension arms as no ball joints or bushings are replacable

This may or may not be the cause could be one bent part but I would at least check the bushings out I bet they are hard as a rock I am in the middle of changing mine now. PIA

Sep 19, 2008 | 1994 Toyota Supra

Not finding what you are looking for?
1997 Toyota Supra Logo

Related Topics:

133 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

60867 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...