When I go to start my 2002 grand prix 3800 series 2 it doesn't stay running on first start without revving up the RPM's. I hooked up to a code reader, came up with both O2 censors and a MAC

Asked by Jan 04, 2015 at 03:22 AM about the 2002 Pontiac Grand Prix GT

Question type: Maintenance & Repair

MAC= mass air censor
I changed all 3 and still runnin the same.
PLEASE HELP!!!!!!!

2 Answers

66,075

Try tapping on the EGR valve with the handle end of a screwdriver. It may be stuck open. That'll cause a no idle condition. If that straightens out the problem, replace the EGR valve. I've had issues with the one on my '00 Grand Prix GT Coupe. Also check the IAC (Idle Air Control) valve on the throttle body. It may be stuck closed. While you're there clean the throttle body and throttle plates with a spray can of carb and choke cleaner. All parts in there should be clean and shiny. BTW, MAF is the abbreviation for Mass Air Flow Sensor. HTH. -Jim

1 of 1 people found this helpful.
110,025

I agree

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,160
#2 Tom Demyan
Tom Demyan
Reputation 2,830
#3 munron
munron
Reputation 2,180
View All

Related Models For Sale

Used Chevrolet Impala
521 Great Deals out of 31,725 listings starting at $1,450
Used Pontiac Bonneville
3 Great Deals out of 533 listings starting at $1,799
Used Pontiac Grand Am
1,215 listings starting at $1,999
Used Chevrolet Monte Carlo
21 Great Deals out of 1,408 listings starting at $1,995
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Malibu
950 Great Deals out of 79,654 listings starting at $1,500
Used Chevrolet Camaro
225 Great Deals out of 30,943 listings starting at $1,217
Used Ford Taurus
249 Great Deals out of 20,433 listings starting at $699
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
3 Great Deals out of 84 listings starting at $2,500
2006 Pontiac Grand Prix GT For Sale
79 listings starting at $2,675
2005 Pontiac Grand Prix GT For Sale
4 Great Deals out of 113 listings starting at $1,895

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.