96 Pontiac Sunfire, 2.2ltr, Manuel transmission, 288000kms
OK, from the beginning. Car was running normal with exhaust getting louder (needed new muffler) one day she was lacking power going up hills and on the throttle it self after coasting. I got diagnoses done. No codes until car was revved to 3000rpm (would not go pass 3000rpm)
1. Running rich
I then got new muffler and took off the Cadillac converter and replaced it with straight pipe also changed fuel filter and EGR. Still doing same, next diagnoses
1. Changed EGR
2. Changed plugs, good
3. Compression 140 cross the board
4. Checked fuel injectors and pressure, good
5. Checked all fuel pressure, good
Car is still running rough and like a granny, as soon as u want power it sounds like a misfire, you can push gas pedal down but nothing comes of it until you go granny speed again. Then it kicks in.
HELP we are stumped HeLP pLeAsE
have the same problem?
Wednesday, January 23rd, 2013 AT 11:55 PM