i have a 1997 sunfire. it was not running on a 4 cylinders. the cylinders jumped on and off rarely running on all 4. so i got a coil pack complete with back plate. i changed it and it wouldnt even start. so i took the coil pack back off and put the original on. it starts but stalls right away. i believe the skip is still there as well.
since then i have changed just the coils, without back plate. and i have also tried other back plates just the original will start it.
i have checked the spark-plugs for fire. they all fire nice.
i have also changed the knock sensor on the bottom of the block. i have changed the cam sensor.
i have checked the fuel pressure it looks good, it had 55 psi. i changed the gas filter.
i have connected a ob II code reader to it. it says all is ok no codes.
i have also removed the remote starter.
i have been working on this problem for weeks now. i would really appreciate hearing your opinion. thank you.
since then i have changed just the coils, without back plate. and i have also tried other back plates just the original will start it.
i have checked the spark-plugs for fire. they all fire nice.
i have also changed the knock sensor on the bottom of the block. i have changed the cam sensor.
i have checked the fuel pressure it looks good, it had 55 psi. i changed the gas filter.
i have connected a ob II code reader to it. it says all is ok no codes.
i have also removed the remote starter.
i have been working on this problem for weeks now. i would really appreciate hearing your opinion. thank you.
Aug 17, 2009 at 6:11 PM