wide open throttle

Asked by Oct 24, 2008 at 06:09 PM about the 1994 Pontiac Grand Prix 4 Dr SE Sedan

Question type: Maintenance & Repair

what would cause a w.o.t. condition at start?  put new ecm in. what sensor or circuit controls this condition? the car is undriveable because this occurs every time and wont idle down.

2 Answers


Your engine speed is controlled by the air control valve that bypasses the throtle blade. If it were stuck/broken it could cause that kind of symptom. Is the MIL(engine light) on? If it is, I would have it scanned to get the codes off of it. They could tell you more of what the problem could be.

1 out of 1 people think this is helpful.

Andrew8195 Thanks for reply. Borrowed an obt diagnostic tool, and its showing not connected, so I cant pull the codes.

Your Answer

Add photo

Related Questions

  • Could this be a throttle sensor? 1 answer

    2005 Pontiac Grand Prix GT when starting it sometimes it starts fine and runs fine. Other times when starting I have to push on the accelerator and then it runs very rough. When this happens it als...

    2005 Pontiac Grand Prix GT


    Maintenance & Repair

  • throttle cable 1 answer

    My throttle cable broke. I can't seem to find an oem. I found a universal but not sure of the length?

    1995 Pontiac Grand Prix


    Maintenance & Repair

  • replaced head gaskets 3.8L but I still get water in throttle body 4 answers

    water in throttle body after replacing new head gaskets

    1999 Pontiac Grand Prix 4 Dr SE Sedan


    Maintenance & Repair

  • Throttle body interchange 04 gtp

    Will any other grand prix throttle body interchange with my o4 gtp

    2004 Pontiac Grand Prix GTP


    Maintenance & Repair

  • Sticky Throttle 1 answer

    My sunfire has had a sticky throttle the last 2 winters. I can correct it by cleaning it with throttle body cleaner, but that is a pain. Is there a particular cause to this issue? Thanks

    2001 Pontiac Sunfire


    Maintenance & Repair

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Reputation 3,770
#2 Tom Demyan
Tom Demyan
Reputation 2,520
#3 munron
Reputation 2,010
View All

Related Models For Sale

Used Chevrolet Impala
998 Great Deals out of 36,594 listings starting at $1,800
Used Pontiac Bonneville
3 Great Deals out of 667 listings starting at $2,298
Used Chevrolet Monte Carlo
16 Great Deals out of 1,737 listings starting at $1,695
Used Pontiac Grand Am
1,716 listings starting at $1,995
Used Ford Mustang
717 Great Deals out of 38,862 listings starting at $1,999
Used Chevrolet Camaro
655 Great Deals out of 39,479 listings starting at $3,495
Used Nissan Maxima
500 Great Deals out of 25,223 listings starting at $1,500
Used Chevrolet Tahoe
1,100 Great Deals out of 31,962 listings starting at $1,495
Used Pontiac Firebird
10 Great Deals out of 833 listings starting at $3,800

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
15 Great Deals out of 469 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
523 listings starting at $1,995
2006 Pontiac Grand Prix For Sale
5 Great Deals out of 636 listings starting at $1,550
2005 Pontiac Grand Prix For Sale
7 Great Deals out of 442 listings starting at $1,195