misfire and rich - General Forum

Forum Post / Reply
You must log in before you can post or reply to messages.
misfire and rich
Sunday, November 24, 2013 5:00 PM
I have an 02 cavalier with the ecotec motor. I just replaced the motor with an 03 sunfire ecotec. Check engine light is on and says misfire and bank 1 rich. The car starts but runs rough and pops, but after a mile down the road it smooths out and runs good. This happens when motor is cold or warmed up. I swapped the icm and coils, swapped the fuel rail and injectors, coolant temp sensor, new plugs. Fuel pres. is at 58. Compression is 150 on all cylinders. Any ideas?

Forum Post / Reply
You must log in before you can post or reply to messages.

 

Start New Topic Advanced Search