Random misfire no check engine light
190

Asked by GP_GTX Apr 01, 2015 at 09:28 AM about the 2000 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

Changed MAFS 3x, plugs, wires, O2 sensors, TPS, AIC, MAP, COILS, ignition module,
coolant temp sensor, crank and cam sensor, catilytic converter. If I unplug the MAFS the
random misfire goes away. Also it's misfiring under a load..( drive or reverse). Good fuel
pressure. Anything helps

1 Answer
190

GP_GTX answered 9 years ago

As far as the check engine light... its throwing a malfunction indicator lamp

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Random misfire no check engine light 1 Answer

    Changed MAFS 3x, plugs, wires, O2 sensors, TPS, AIC, MAP, COILS, ignition module, coolant temp sensor, crank and cam sensor, catilytic converter. If I unplug the MAFS the random misfire goes away. A...

    2000 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

  • Random/ multiple misfire 2 Answers

    So recently my check engine light came on for multiple misfire and some other things. I changed what it said was wrong it worked for all of about an hour. After that i got another multiple misfire ...

    2006 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • Check engine light 4 Answers

    Hello, I have a 2004 Pontiac Grand Prix and whenever we go on the highway and it hits over 75 the check engine light comes on (second time happening) it never happens under that or anytime. We too...

    2004 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

  • Check engine light 2 Answers

    When I go over 80mph my check engine light comes on.... Why?

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Check gas cap/engine light 5 Answers

    My engine light is on and it says check gas cap. I have replaced the gas cap and this has not fixed the problem. Any suggestions?

    2008 Pontiac Grand Prix

    -

    Maintenance & Repair

Shortcuts

Search Pontiac Grand Prix Questions

CarGurus Experts

  • #1
    munron
    Reputation
    8,140
  • #2
    james sparrow
    Reputation
    7,480
  • #3
    Dorian Hendricks
    Reputation
    6,020
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Impala
5 Great Deals out of 129 listings starting at $3,495
Used Pontiac Bonneville
1 listing
Used Pontiac Firebird
18 listings
Used Chevrolet Monte Carlo
7 listings starting at $9,800
Used Pontiac Grand Am
2 listings
Used Chevrolet Corvette
28 Great Deals out of 784 listings starting at $15,900
Used Chevrolet Camaro
20 Great Deals out of 468 listings starting at $11,999
Used Ford Mustang
42 Great Deals out of 1,603 listings starting at $8,995
Used Buick Regal
23 listings starting at $6,395

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.