Question about 1986 Toyota MR2

1 Answer

I just bought a 86 MR2 it starts right up but then immediately dies. The previous smog test called it a gross polluter.Any ideas?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

Could be a mass air flow sensor problem, or a manifold pressure sensor problem. may have several major vacumn leaks that are used to sense and control fuel injection supply pressure and fuel flow. Might check manifold pressure. Check vacumn. inspect lines. there are several lines on air flow inlet. there are several vacumn control valves also. Would suggest obtaining an emmisions line chart. There is usually a decal showing the hose routing on the vehicle some where in the engine compartment.

Posted on Oct 14, 2010


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

2000 Toyota Echo coupe sure to pass smog all spec's and testing

You probably already learned that you should have taken it to a reputable repair shop. Whenever a vehicle wont pass emissions, don't try and fixing it yourself, take it to the dealer and let them use the skills and tools they paid thousands of dollars for just to help you get your car back on the road.

Aug 07, 2014 | 2000 Toyota ECHO

1 Answer

Why does my car **** and hesitate and has failed smog 2X is now a gross polluter ?

Because you failed to have a shop look at the data
& make the required repairs & get caught up on preventative
maintenance BEFORE you went to inspection

If you were in fact at a shop, for any reason,then they have no idea
how to test vehicle

Have you considered the motor is shot & you have leaking valves?

May 20, 2014 | 2000 Toyota ECHO

1 Answer

Where is the egr valve located on a 1990 mitsubishi 3.0L?

Notice in the emissions part of the service manual. That is has different versions of this truck Canada, 49 state and a 50 state. Not all of them have the egr valve. Some may not have this and in some areas this could cause the truck to fail "NO/PPM" (NOX) on the smog like in LA County. Causing the truck to be viewed as a gross polluter. This reading might be more then double the gross polluter limit allowed.

Feb 10, 2013 | 1990 Mitsubishi Mighty Max

1 Answer

The smog test read that the gross polluter emissions were high, how do i fix that?

first off you have to tell us what the emission readings of the gases were to help you out.otherwise icould tell you anything and it won`t help to fix the problem.

Sep 18, 2011 | Chevrolet Blazer Cars & Trucks

2 Answers

1996 chrysler town & country electrical system problem

door ajar - probably a defective or unplugged door switch. Try pulling them, one at a time and checking the wire connections on them.

Aug 05, 2009 | 1996 Chrysler Town & Country

2 Answers

My 1990 chevy lumina just started making a noise when aceleratin

change fuel filter.then check fuel pressure.if you got TBI FUEL INJECTION PRESSURE SHOULD BE 26-32 PSI. IF YOU GOT MFI FUEL INJECTION PRESSURE SHOULD BE 40-47 PSI.if all is good .have car scan check the egr sensor. coolant sensor.if any one of those are bad it causes rich fuel mixture.that will cause you to fail smog test.also replace plugs and wires.if they are faulty they will misfire cause unburn fuel to come out exhaust.also check for for intake leaks check all vacuum hoses.

Jun 22, 2009 | 1990 Chevrolet Lumina

2 Answers

95 caprice wont pass california smog test


Jun 04, 2009 | 1995 Chevrolet Caprice Classic

1 Answer

My car just failed smog emissions test, had high nox count, at 15 miles about double max allowed, at 25 mit iles per hour, triple max allowed. The car is a 91 plymouth voyager.During the test it smoked...

i would put a good tank of gas in the system. like 93 the car for about 1 week or at least 100 miles. i would also go to a good auto parts store.u should be able to buy a bottle of engine cleaner to pass the smog test.also when u bring the car in for the inspection.take it for a rideand get it nice and warmed up.

Mar 10, 2009 | 1991 Plymouth Voyager

2 Answers

1988 Ranger failed CA smog test (badly)

pull head off and grind the valves in,this should help reduce the levels ,also check the pistons and bores if ok or look it then rebuild and try it again

Jan 07, 2009 | 1988 Ford Ranger

Not finding what you are looking for?
1986 Toyota MR2 Logo

285 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts


Level 3 Expert

76673 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8531 Answers

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

Answer questions

Manuals & User Guides