Maybe fuel

Asked by Jan 13, 2017 at 08:00 PM about the 2004 Pontiac Grand Prix GT1

Question type: Maintenance & Repair

I had a code read mas airflow sensor so I replaced
it but my car still acts like it looses fuel power and
rpms after 20mph then it drives great I can't seem
to figure this issue out any ideas ?

1 Answer


Try running some fuel injection cleaner threw a few tanks. Other wise you could check the spark plugs & fuel pressure, it should be around 30 lbs. I would need to know the engine size and if it is coil on plug set-up to give you more info.

1 of 1 people found this helpful.

Your Answer

Pontiac Grand Prix Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Chevrolet Impala
155 Great Deals out of 1,108 listings starting at $2,950
Used Chevrolet Monte Carlo
16 listings starting at $4,995
Used Pontiac G6
121 listings starting at $2,500
Used Chevrolet Malibu
71 Great Deals out of 1,822 listings starting at $2,495
Used Pontiac Grand Am
26 listings
Used Pontiac GTO
5 listings starting at $13,900
Used Ford Mustang
1,030 listings starting at $3,900
Used Chrysler 300
70 Great Deals out of 831 listings starting at $3,295
Used Nissan Maxima
22 Great Deals out of 404 listings starting at $1,995
Used Jeep Grand Cherokee
145 Great Deals out of 4,029 listings starting at $2,400

Used Cars For Sale

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.