Question about 2000 Chevrolet Cavalier
I have a 2000 Dodge stratus that has a code reading of po 300, 301, 302, 303, 304, 305 and 306. I hate this car with a passion. Took it to smog never had a check engine light on. It measured 54 and that's the max for California but over all it failed because the "monitors" weren't set. ( I change the battery 2 days prior ). I put lucas fuel cleaner in it and within two mins the check engine light came on and has never went off since. When I took it to pep boys that's the codes they pulled off the car. I have practically replaced every damn thing on this car except the spark plugs, plug wires, cat, EGR and oxy sensor . So I'm wondering which one it most likely is!?!?! Also I get bad gas mileage and the car idel's very rough at about 550 rpm but the car still has good power!?!? Any idea's or suggestions? I just want this car to pass smog so I can sell this piece of crap!
Posted by Anonymous on
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Posted on Jan 02, 2017
My problem was solved when I repaired my 4 wd activation dash switch. The switch was contacting on 2WD & 4HI at the same time. The front differential activation is vacuum activated possibly creating a tug of war that didn't actually engage it but drained off vacuum from the engine? A theory at best but stumbbled across it because I knew the switch wasn't working properly I repaired it and low and behold rough idle disappeared and all is good for 3 weeks running.
Posted on Dec 10, 2008
Could be a short in the wiring for the O2 sensor. I currently have the same issue only my car finally threw a code after two days of it acting up. Code 106. Changed the MAP sensor and it now throws 108, MAP sensor high voltage circuit. Ah the joys of cold weather and broke down vehicles. But I know that you wont always get a code with a short. Let me know if you fixed the problem.
Posted on Jan 08, 2009
1- check there is spark come from spark wires
2- check the fire timing by looking for every wire in the right place
3- check there is injector signl
4- check for any vacuom leak
5- try to clean the MAF by brake and parts cleaner
6- try to reset all the code and see what will come after that
Posted on Mar 14, 2009
SOURCE: 2007 aveo misfire faults
gm has a problem with this from way back. double check your spark plugs and if they are not ac delcos, change them. ive seen this time and time again swearing, myself, that there is no way that the plugs would cause this issue. it always comes up with random misfire and usually another 1 or 2 codes misfire codes. put in ac delco, no more codes. let me know
Posted on Feb 22, 2010
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