2007 Grand Prix (3.8) 5 codes and Reduced Engine Power
10

Asked by Vibe0005 Oct 26, 2020 at 10:26 AM about the 2007 Pontiac Grand Prix Base

Question type: Maintenance & Repair

I have a 2007 Grand Prix (base model) which will randomly throw about 5
codes (plus a reduced engine power light). Misfire, Throttle body PS and
accelerator PS then two pending codes for the TBPS and APS. I've changed
the APS and it still comes up. When I get reduced engine power light,
whenever I brake the rpms will flutter randomly between 1k rpm and 400rpm
then when i release from the brake it sits at 1k. I don't know what would be
giving me an issue at this time.

2 Answers
10

Vibe0005 answered 4 years ago

To add to that, I haven't looked at the plugs yet but I don't see why i would be havinf issues with the TBPS and APS from plugs

1 people found this helpful.
Mark helpful
10

Guru9DT7V7 answered 4 years ago

Check wires in Loom above the front valve cover. There’s one wire on bottom side of the loom that the motor contacts and rubs through the wire causes car to act and do exactly what you described.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 2007 Grand Prix (3.8) 5 codes and Reduced Engine Power 2 Answers

    I have a 2007 Grand Prix (base model) which will randomly throw about 5 codes (plus a reduced engine power light). Misfire, Throttle body PS and accelerator PS then two pending codes for the TBPS an...

    2007 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • 2007 Pontiac supercharged 3.8 reduced engine power 1 Answer

    Changed water pump and after putting it together car will start but runs like crap then traction control comes on then reduced engine power and stalls out ran fine before

    2007 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • Reduced Engine Power 2008 Grand Prix 2 Answers

    I have a 2008 Grand Prix. for the last two weeks or so the reduced engine light has been signaling I can go as fast as I want but it takes a lot longer to speed up the RPM's don't go over 1500 and...

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Reduced Engine Power light and trouble codes P1125 and P2138 3 Answers

    I was driving up a steep bridge and all the sudden a light came on that said Reduced Engine Power and I no longer could drive over 30 mph took it to auto parts and they scanned the trouble codes P11...

    Pontiac Grand Prix

    -

    Maintenance & Repair

  • Reduced Engine Power alert 2004 Pontiac Grand Prix GXP Supercharged 3 Answers

    I have this 2004 Pontiac Grand Prix GXP fully loaded 3.8 Supercharge and I just bought it last month (July). Well the first couple days of having it were FANTASTIC! However, the guy who sold me th...

    2004 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

Shortcuts

Search Pontiac Grand Prix Questions

CarGurus Experts

  • #1
    munron
    Reputation
    8,220
  • #2
    James Sparrow
    Reputation
    7,520
  • #3
    Dorian Hendricks
    Reputation
    6,170
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac GTO
5 listings
Used Chevrolet Corvette
28 Great Deals out of 1,058 listings starting at $15,871
Used Ford Mustang
65 Great Deals out of 1,258 listings starting at $4,995
Used Pontiac G6
19 listings
Used Chevrolet Impala
10 Great Deals out of 110 listings starting at $4,632
Used Pontiac Grand Am
3 listings
Used Dodge Charger
39 Great Deals out of 645 listings starting at $4,888
Used Chevrolet Monte Carlo
7 listings starting at $3,000
Used Pontiac G8
2 listings
Used Chrysler 300
42 Great Deals out of 516 listings starting at $4,999
Used Chevrolet Tahoe
20 Great Deals out of 904 listings starting at $11,900

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.