Question about 1991 Toyota MR2

1 Answer

Throttle Body Issue's

I have a 91 MR2 NA, had the motor totally rebuilt and have about 9000 miles on it. I am having problems with the throttle body. I have already replaced it once, and now it's acting funny again. I start the car and start to drive it and the motor will continually surge when I am stopped. We have tried adjusting it, but it hasn't fixed the problem.

Posted by on

  • Toyota Ed May 11, 2010

    Please explain the surge condition better.


1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I can get my car to start for 2 seconds and the and shut off after that....i don't know what wrong with it. please help anybody..

Posted on Mar 13, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer


It is NOT a failed Throttle Body

FORGET the 2100 ford codes

The problem is bad cop ignition coils

Change the spark plugs
Change any failed coils or all of them
Change the Front Oxygen Sensors at 100,000 miles
Clean MAF Sensor

Clean throttle body --- CRC- throttle body cleaner-instructions
on back of can

In a very very very rare case the TACM Motor may fail
on the throttle body & you have one of the also rare vehicles
that you can actually buy a new motor for, without getting a
$600 throttle body
Those motors Dorman has & Amazon I believe for $75.00

NO reason at all that YOU can not do ALL that work yourself

Part are avail from Rock Auto.Com

Mar 19, 2014 | 2005 Ford F-150

1 Answer

Tsb 0111-10 service bulliten

it entails to the new throttle body part number which eliminates the throttle body drain hose port is not on the replacement throttle body. prevents the failure of the throttlebody after 100k miles. because of corrosion that gets into the throttlebody motor.

Mar 01, 2014 | Cars & Trucks

1 Answer

91 buick regal. fuel coming out of throttle body when turning over the motor

Has throttle body been rebuilt? What about the gaskets/seals? are they new, (incl base gasket)? Also check throttle valve shaft for leakage between throttle body and shaft.

Apr 03, 2013 | 1991 Buick Regal

2 Answers

Engine hesitates,no pressure release when gas cap removed on a 98 buick lesabre

Not sure how long ago you had the top half of the engine rebuilt and not sure if this is a new problem and the vehicle ran fine after the top end was done (thinking it was fine then). I have found a number of times that the throttle plate gets carbon deposits on it to where it doesn't close in the proper spot. This throttle body happens to have a screen in it so many people don't physically clean the deposits off and just spray cleaner in there to clean it. Below is a picture of that screen in the throttle body and I marked with a red arrow a snap ring that needs to be removed and that screen comes right out. Spray that throttle plate real well with throttle body cleaner and even manually open it so you get both sides. I even use a soft tooth brush and a rag with throttle body cleaner. Get the trottle plate and the inside of the throttle body including the little ledges that kind of stop the trottle body (you will feel a "lip" in there). After you get it all back together, disconnect the negative battery terminal for about 10 minutes and then start the car. It's gonna be a hard start at first and rev it a few times to blow the cleaner out and then just let it idle for about 5 to 10 minutes. Then maybe drive it for a few miles. Disconnecting the battery cleared how your vehicles computer (PCM) where it thought its idle was set and now is going to teach itself the best idle position. It still going to take about 25 miles and some driving time to totally learn but I think this should help clear it up. Another thing but you will need the proper scanner or somebody who can do it for you and it is called a crankshaft position system variation learn procedure. Hope this helps...


Feb 18, 2013 | 1998 Buick LeSabre

1 Answer

I do not get a start up pluse on 91 Camaro RS 305

I assume you are not getting fuel spray from the injectors ?
If you are getting voltage to the injectors you should be able to ground and get a spray. If no spray, they may be stopped up from sitting.

Jun 23, 2012 | Cars & Trucks

1 Answer

Ok. My F-150 2004 Ford has a rough idle. It will die when i sometimes come to a stop. Took it to a dealer and they put on the computer and they found the throttle body actuator code in the system. Suspect...

What the dealer told you & what they do, is replace
the entire throttle body for no reason, other than they
can't diagnose their own products & they make money
off you

There are no computers used to diagnose or work on any
motor vehicles
A professional scan tool only sees what the PCM (vehicle
computer) sees & that is where all the problems start

A (TACM) throttle actuator control motor ,is part of the
throttle body & is not replaceable & the whole assy is over
$600.00 plus their unnecessary abuse of labor

All you need is spark plugs that do not have over 60,000
miles on them.
Spray the MAF Sensor with CRC MAF Cleaner & the main
problem you have is solved with spraying the sticking throttle
plate with CRC Throttle Body Cleaner, so it works & you do
not loose throttle position or % & get TACM Codes or
get wacked for a Grand by a dealer, which you should never
be at after the warrantee runs out

Also replace the (2) front O2 Sensors at 100,000 miles

Aug 12, 2011 | 2004 Ford F150

1 Answer

Have saab 9000 turbo tcs light came on in limp mode how hard and expensive is it to fix this??



Feb 19, 2011 | 1992 Saab 9000

3 Answers

2004 dodge ram 1500 5.7 hemi 4x4 4 door 90k miles

Take throttle body off, clean Throttle Body with Carburator cleaner. I had same problem and its the ethynol in fuel that creates a build up in the throttle body which creates this problem. I did what a friend of mine said to do (service manager at Dodge Dealership) it hasnt happened again.

Dec 02, 2008 | 2004 Dodge Ram 1500

1 Answer

Idle problem on 91 applause

You may need to adjust your TPS. That is the little black box that hangs off the side of the throttle body.

It should be adjusted so that the switch opens as the TB cracks open.

Oct 06, 2008 | 1991 Daihatsu Charade

Not finding what you are looking for?
1991 Toyota MR2 Logo

Related Topics:

151 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts


Level 3 Expert

70347 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6876 Answers

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

Answer questions

Manuals & User Guides