Question about Pontiac Firebird

1 Answer

My car is a 91 pontiac firebird 3.1 liter v6 and will start right up but once started will not react when pushing down the gas pedal it idles fine but when I put in drive or just sit pressing the gas it sounds like the car is choking firing oorder is correct tune up has been done been told that it is possibly a tps sensor or maf sensor. I have not checked or changed the fuel filter. please help this car is a gem and just not running right \.. Thanking you in advance

Posted by on

  • 1 more comment 
  • Jason r. Hicks May 04, 2010

    thanks emmissionwiz I am going to check the diag codes for sure I appreciate your quick response and will keep you updated!!

    Thanks again


  • Jason r. Hicks May 04, 2010

    ok i checked the codes the first was 12 and the second was 15 thats the coolant low sensor? how do I reset the codes after checking them to make the check engine light reset to maybe pick up a different code maybe?\

  • Jason r. Hicks May 04, 2010

    thank you again for this great info. I have written aq reply to your advice this is my first time using this tyoe of method with info like this so it is greatly appreciated and mindblowing!!Thank you



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Pontiac Master
  • 80,407 Answers

OK the TPS would cause a stumble but not a condition like u have, a MAF however would cause this and leave no fault codes, also a faulty fuel pump will cause this, the pump delivers enough pressure to keep the car running at idle/low RPM, but if u ask for more power it will fall flat on its face, so idle only is the symptom, u need to do the following, get the fuel pressure checked under a load, the pressure should be at least 50 pounds and increase when u goose the throttle, if the fuel pressure is ok then it is possible the MAF is the problem, but without the proper system scanner to watch the electronic signal from the MAF that is a guess, I do know that the MAF is a common problem on this year and very likely the problem, Also you have not done a fault code test, that needs to be done before you replace any parts, below is how u do a fault code test without a scanner.

Posted on May 04, 2010

  • yadayada
    yadayada May 04, 2010

    12 is not a code, it means ready to test, to clear codes disconnect the battery NEGATIVE cable for 5 minutes.

  • yadayada
    yadayada May 04, 2010

    the coolant temperature sensor is near the thermostat housing, make sure the connector is connected and in good shape, if not replace the sensor and the connector with the new design sensor and connector from any G



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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

It want crank by the key I cross the relay and starts but only runs for a few sec

Car Won't Start Because of Anti-Theft System That Uses ... > Problems > Pontiac > Firebird
Car Won't Start and Security Light is On on Pontiac Firebird. Problems with the anti-theft systems using the raised-chip key can prevent the car from starting.

Security light was on and car won't start - CarGurus > Questions > Pontiac > Firebird

CarGurusJul 24, 2007 - Check to see if your key chip isnt worn out(small silver thing on top part... My 1994 pontic firebird won't start and I no everything works great on ...

Pontiac Firebird Questions - security light - CarGurus > Questions > Pontiac > Firebird

CarGurusFeb 5, 2009 - Hi I've recently bought a pontiac firebird the car doesn't have keys as previous owner ... Security light was on and car won't start 3 answers.

91 Pontiac Firebird won't start (Pontiac Firebird) > Edmunds Answers
Jun 18, 2008 - My '91 Pontiac Trans AM GTA will not start. When I turn the key, the engine does nothing, as if the battery were dead or the clutch pedal wasn't ...

Jan 09, 2016 | Pontiac Firebird Cars & Trucks

1 Answer

Pontiac firebird 1994 v6 wont turn over unless gas pedal is pressed i just changed fuel filter. what could this be?

When you say won't turn over, do you mean that in order for the starter to engage you must press the gas pedal? Or do you mean that the vehicle will only fire and run once the gas pedal is pressed?

After I know that I can better answer your question

Nov 01, 2013 | 1994 Pontiac Firebird

1 Answer

I have a 91 firebird with a 3.1 v6. It will idle fine when I first crank it and run down the road fine. But after driving maybe 5-10 miles it will stall anytime I let off the gas. It has a manual...

The first thing I would do is try to relearn the idle. To do this, first disconnect the negative battery cable for a few minutes, then reconnect the cable. Then using an unfolded paper clip jump terminals A and B in the connector under the dash near the steering column, then turn the key on for about 5-10 seconds, and then turn it back to off. Remove the paper clip. Set the parking brake, and make sure everything is turned off, radio, heater, everything. Then start the car and do not touch anything. Let it idle until you hear the cooling fan come on and then go off. Then turn the ignition off. Process complete. If this has no effect on the cars idle, it's time to replace the idle air control valve and clean the passages in the throttle body. As a side note, you really don't want to have to replace the fuel pump, That involves removing the rear-end and the exhaust system from the car, your fuel tank is located above those assemblies.

Mar 05, 2012 | 1991 Pontiac Firebird

1 Answer

My 91 3.1L V6 pontiac firebird is driving a bit rough. first of all sometimes when you start to accelerate the engine POPS loud. sometimes just once but other times alot more often. and it sounds very...

Looks like you're engine's skipping and it could use a good tune-up, spark plug and wires, distributer cap and rotor, air and fuel filters and you should be in bisness.

Aug 04, 2009 | 1991 Pontiac Firebird

1 Answer

1998 3800 v6 firebird... wont run right after starting

Possibly a weak fuel pump, idle air control valve, vacuum leaks, or loose or damaged wiring in the ignition system. Check for vacuum leaks first. That's the only one that won't cost anything. Make sure all intake bolts are tight, and all hoses are connected properly and in good condition.

Jul 20, 2009 | 1999 Pontiac Firebird

3 Answers

91 firebird v6 It started up drove it around block let sit for 45

my car is doing the exact same thing. these cars have a tendancy to jump time. the best way to check is to pull ur plugs and turn the motor over by hand till the #1 cylinder(front left side of engine) is up. u tell if its up by putting a screwdriver or something in the hole. then go to ur distributer and see if the rotor tip is on the #1 spot on the cap. if not the timing is off.

Jun 30, 2009 | 1991 Pontiac Firebird

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

35 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

80407 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

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

Answer questions

Manuals & User Guides