Edmunds Answers

Answers

  • 0patience 03/09/08 1:22 am PST

    Are you certain that it says "U" and not P0420?
    There is no U0420 for your vehicle.

    What is the brand and make of the scanner you are using?

  • chevy001 03/09/08 4:49 pm PST

    superchips.

  • 0patience 03/10/08 12:31 am PST

    You have a superchip to reprogram your computer?
    And the check engine light came on after you installed it, right?

ADVERTISEMENT

Top Chevrolet Silverado 1500 Experts View More

Rank Leader Points
1. karjunkie 730
2. MrShift@Edmunds 545
3. zaken1 310
4. obyone 250
5. docj 240
6. 0patience 190
7. morin2 135
ADVERTISEMENT