03 chevy cavalier

10

Asked by Jan 08, 2016 at 10:28 PM about the 2003 Chevrolet Cavalier Sedan FWD

Question type: Maintenance & Repair

My 03 cavalier check engine light is can't be erased even
though if already fix the problem any suggestions on  what
can be worng

6 Answers

10

I was reading that the ecm was damaged but I put a new one and the engine light still on

105,495

Then there is still a problem, it could be in the wiring, if the ohms readings are off just slightly then it can turn on the light, this is where a live data scanner would be the tool to have, that way you could see exactly what the ECM is reading at any given point in time, then you can repair the systems that are reading incorrectly. HTH

10

The code is for the ho2 sensor and the sensor is new and I check the wiring and everything is good

1 of 1 people found this helpful.
72,515

What trouble code do you have? It'll be a P---- number (P0302 for example). If you just fixed it you may have to wait a day or 2 for the computer to run the diagnostics on the system and determine that it's been fixed. HTH. -Jim

105,495

Did you ohm out the wiring from the ECM to the O2 sensor itself?

105,495

I just did an O2 problem on a S10 that was shorted in the harness, just rewired the O2 circuits. No more problem.

Your Answer

Cavalier

Looking for a Used Cavalier in your area?

CarGurus has 803 nationwide Cavalier listings starting at $1,695.

ZIP:

Chevrolet Cavalier Experts

  • #1
    John Saffrahn
    Reputation
    3,060
  • #2
    dandyoun
    Reputation
    1,380
  • #3
    mbar1
    Reputation
    1,230
View All

Related Models For Sale

Used Chevrolet Malibu
1,091 Great Deals out of 62,504 listings starting at $880
Used Honda Civic
830 Great Deals out of 60,530 listings starting at $950
Used Chevrolet Impala
566 Great Deals out of 34,343 listings starting at $1,100
Used Ford Focus
796 Great Deals out of 62,795 listings starting at $900
Used Chevrolet Camaro
442 Great Deals out of 31,709 listings starting at $1,450
Used Honda Accord
1,074 Great Deals out of 74,233 listings starting at $1,100
Used Toyota Corolla
961 Great Deals out of 66,681 listings starting at $1,699
Used Nissan Altima
1,370 Great Deals out of 77,643 listings starting at $1,695
Used Ford Mustang
580 Great Deals out of 39,808 listings starting at $1,895
Used Pontiac Sunfire
284 listings starting at $2,100
Used Chevrolet Silverado 1500
2,657 Great Deals out of 174,213 listings starting at $955
Used Ford F-150
3,212 Great Deals out of 223,759 listings starting at $1,200
Used Chevrolet S-10
12 Great Deals out of 1,207 listings starting at $1,600

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.