thanks for taking your time.
On 97 cavalier 2.2 there are following problems:
- Engine stalls or studders on stop lights when i stop and idle. Not every time though. giving a little tap or two on a gas pedal would stabilize the engine. some times i have to keep taping till the green light.
- Couldn't start the engine after being parked for 3-4 days. I checked wires, plugs, spark was there. exhaust smelled like unburned petrol. So, ignition is ok, fuel is delivered and yet it doesn't start. Compression shouldn't be a problem, i replaced head gasket and valve rubber thingies about 8 months ago and compression was very good after repair (9.6-9.8 not too bad for 140k chevy engine). Completely puzzled i tried to start again. after so many tries it finaly started, very painfully, shaking, working erraticaly like it is completely out of timing. check engine was blinking. i shut it down. then start it again. it was a OK. check engine is on. i haven't checked it yet, i will. although by the way that light came on i don't expect anyting but missfire message.
- with engine warm (i haven't tried it on cold) i rev'ed it up to approx. 4.5K rpm (in neutral) and could hear some missing. like the engine shuts off for half a second. it felt like if i rev it up any higher it would backfire.
i appreciate your response and thoughts.