Boost
January 2nd, 2012, 02:15 AM
Here are 3 logs, I would really appreciate if you can look at them and tell me what you think. The car is an '04 Cavalier with a 2.2 "F" Ecotec, and is stalling and then does not start (although it did start right up after the stall in log #2). The timing looks and sounds retarded.
The thing is that is seems to "jump back" to good timing every now and then, decides to start right up and run well and 30+ degrees timing, especially when cold. But the at idle or a stop it will stall and not want to start up. I have seen jumped chains / loose tensioners on this but they usually stay retarded and sometimes rattle. I hope it's not the PCM, but it seems to function well, communicate and read and flash. Also tested the ignition control module, colis, plugs, fuel pump, level and filter, all good.
The first log I selected too many PIDs and it's slow, just a warm-up and no stall.
The second log I decreased the PIDs for faster reading, car stalls at the end.
The third log is revving and observing / hearing retarded timing.
Please advise, thank you very much for your time and help!
The thing is that is seems to "jump back" to good timing every now and then, decides to start right up and run well and 30+ degrees timing, especially when cold. But the at idle or a stop it will stall and not want to start up. I have seen jumped chains / loose tensioners on this but they usually stay retarded and sometimes rattle. I hope it's not the PCM, but it seems to function well, communicate and read and flash. Also tested the ignition control module, colis, plugs, fuel pump, level and filter, all good.
The first log I selected too many PIDs and it's slow, just a warm-up and no stall.
The second log I decreased the PIDs for faster reading, car stalls at the end.
The third log is revving and observing / hearing retarded timing.
Please advise, thank you very much for your time and help!