Question about 2003 Chevrolet Cavalier
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Posted on Jan 02, 2017
SOURCE: PO420 CODE ON CHEVY S10
The code means---
Please make sure there is no air entering the engine behind the maf, such as a vacuum leak or leaks in ducting between the maf and the throttle body.
If that's no the case then its an issue with injectors clogging and they are not working due to "fretting". This "fretting" is electrical terminals to injectors getting oxidation on them and is fixed by unplugging them and replugging them in. The fix is to put a small dab of die-electric grease on the terminals.
I would suggest an injector service with the new GM procedure using "Top Engine Cleaner". This may be all you need but that P0420 bothers me. P0420, Catalyst System Efficiency Below Threshold, can be set by a poor connection at the PCM or a damaged wiring harness.
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Posted on Mar 01, 2009
2.2l cavalier engines have an oil level sensor on the front side of the pan just below the starter. make sure it plugged in before checking anything else. if you're going to change a sensor because of "low oil' light, that would be the one.
Posted on Mar 16, 2009
SOURCE: spark plugs
The spark plugs on the cavalier are under the 2.2 ecotec panel located on the top of the engine. There are no spark plug wires to deal with. The electronic coil pack directly attaches to the plugs with rubber seats like in a spark plug end. Then you use a deep socket ratchet to get the plugs out. Use anti-seize compound when replacing the plugs.
Posted on Jun 30, 2009
for the most part they are in between the fuel injector the best thing for you to do is stop by your local GM dealership in the part department and they be able to print you off the pictures and diagrams you need if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car Merry Christmas and Happy New Year as always wish you the best of luck Michigan Man.
Posted on Dec 21, 2009
Testimonial: "great thanks for the info. bobbotg2005"
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