Question: Can a bad fuel pump cause a misfire code in the SAME cylinder each time?
Problem: 2000 OB auto - intermittently sputters, almost stalls, misfires, occasional backfires? (popping noise from rear undercarriage) - only during acceleration from stop or low speed, always on a slight grade (up) or hill. CEL flashes, sometimes stays on, then will turn off on its own.
I'm not mechanically inclined, nor do I have any tools or a garage, so I'm relying on the DEALER. EEEK!
Dealership said code reads: Cylinder 1 misfire.
Replaced ignition coil, replaced O2 sensor, replaced plugs, had wires checked ($$$$)
Third visit to Dealer with same CEL code and problem. Now they want to switch the cylinders? and see if the misfire occurs in the same place?
They are thinking I may need to have the valve repaired??
I haven't got a clue what those things are..I'll have to get an engine diagram and figure out how it works...in the meantime:
I've read a lot here, and it sounds like it might be a fuel pump, but would I get a consistent cylinder 1 misfire code? Wouldn't the misfire vary in each cylinder?
My first Subaru and I think I bought a lemon. (bought used w/ 150K km).
Thanks!