Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
please explain yor problem the best you can
does itrun good after it starts?look at the injectors obove the throttle body,let me know if you see fuel comeing out of them...also see if it will start easy with starting fluid....let me know
it will run good after it starts as long as the check engine light stays on or off, I have replaced the plugs the wires the cap the rotor est box with the 5 wires going into it. the ecm box and the fuel relay switch, but it seems to be flooding out and it will back fire going down the road. yes it starts good with starting fluid. and I had the timming set on it.
sorry i've been offline
tell me the codes you are getting from the computer
you may have a bad ignition module ore distibuter pic-up coil....also you have a bad conection to the o2 sensor or it is bad.....use the code charts to hpin point your problem
please ACCEPT my answer so I can get credit for my work.i don't receive commission unless you do ..i'm not always going to be giving you good news,so please dont let this stand in the way of you accepting my answer.it does not cost you more money.we will still be able to communicate.. Bonuses and positive feedback are appreciated!if you are not satisfied with my answer,please do not leave bad feed back,i will gladly opt out and let another expert handle the question.PLEASE ASK IF YOU NEED MORE HELP
Engine at normal operating temperature.At least 2 minutes engine run time after start.O(2) signal voltage steady between .35 and .55 volts.Throttle angle above 5% (approx .3 volts above closed throttle voltage).RPM above 1600.All conditions must be met for about 60 seconds.If the conditions for a Code 13 exist, the system will not go "Closed Loop"
Diagnostic Aids: Normal "Scan" voltage varies between 100 mv to 999 mv (.1 and 1.0 volt), while in "Closed Loop". Code 13 sets in one minute, if voltage remains between .35 and .55 volts, but the system will go "Open Loop" in about 15 seconds.Verify a clean, tight ground connection for CKT 413. Open CKT(s), 412 or 413 will result in a Code 13. If Code 13 is intermittent,
The "Scan" tool does not have any ability to help diagnose a Code 42 problem.A PROM not fully seated in the ECM can result in a Code 42.