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My 1990 pontiac firebird 3.1 v6 overheated and cut out 14 months ago and hasnt started since , is there a sensor that would cut engine off that would need resetting by the computer, thanks

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  • Pontiac Master
  • 12,152 Answers

Overheated how bad ? Fried the engine , check compression ! Check to see if it has spark at plug wire ! Fuel pressure ! No there is no sensor that would cut off the engine .

Posted on Dec 06, 2016

Testimonial: "Got compression and spark and juice , put new ignition module and and distributor on it as the coil wire on distributor was broken, also put new cap and arm and leads and plugs , it backfires like once on turnover then nothing , thanks"

  • 6 more comments 
  • Jeff Armer Dec 06, 2016

    This vehicle has a distributer ?

  • Jeff Armer Dec 06, 2016

    Have you had the distributor out of the vehicle ?

  • Geoffrey whalon
    Geoffrey whalon Dec 06, 2016

    Yes replaced the distributor

  • Jeff Armer Dec 06, 2016

    Did you get back in right spot . #1 on top dead center an dist. rotor pointing to #1 cylinder . Sounds like your timing is off by 180 degrees

  • Geoffrey whalon
    Geoffrey whalon Dec 09, 2016

    Hi tried setting Timing , number 1 is at 7 o'clock on dizzy

  • Jeff Armer Dec 09, 2016

    on Dizzy LOL first time i heard it called that ! That's right #1 at seven O'clock with a clock wise rotation !
    http://ricksfreeautorepairadvice.com/3-1...

  • Jeff Armer Dec 09, 2016

    Does it have a mass airflow sensor or map ! Try checking five volt ref. voltage. At the TPS sensor .Do you know what 5 volt ref voltage is ? Engine computer supply's 5 volt ref voltage to some sensors on the engine , tranmission . If less then 5 volts a sensor could be shorted, bring down ref. voltage circuit inside the PCM - engine computer .This would cause no start condition . There are three wires at the TPS . Disconnect the connector and check to see if one has five volts . The other two are a ground and signal to PCM

  • Jeff Armer Dec 09, 2016

    Also , does the check engine light come on when you turn the key to the on position ?

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