scott_gunn
Member
- Joined
- June 17, 2003
- Messages
- 40
- Reaction score
- 0
- City, State
- Palm Harbor, FL
- Year, Model & Trim Level
- 02 Explorer XLT
P0305 is misfire in cylinder #5.
P0171 is system lean in bank 1.
The engine in question is the 4.0 SOHC in a 98 Explorer Sport. I've done some searching about the 00M12 ONP and whatnot, and I'm not sure if that's the fix I need. Besides, I have somewhere around 72,001 miles so I wouldn't be covered. When those o-rings go bad, it seems to throw both P0171 and P0174. I haven't had P0174. The car is idling rough and misfiring like crazy under acceleration.
I thought about changing the plug and wire for cylinder 5, but a bad plug or wire wouldn't explain the lean condition on bank 1, would it?
My IAC has been making noise intermittently as well, but I don't see how a problem with it (or the MAF) would only affect cylinder 5.
Any suggestions?
Thanks,
Scott
P0171 is system lean in bank 1.
The engine in question is the 4.0 SOHC in a 98 Explorer Sport. I've done some searching about the 00M12 ONP and whatnot, and I'm not sure if that's the fix I need. Besides, I have somewhere around 72,001 miles so I wouldn't be covered. When those o-rings go bad, it seems to throw both P0171 and P0174. I haven't had P0174. The car is idling rough and misfiring like crazy under acceleration.
I thought about changing the plug and wire for cylinder 5, but a bad plug or wire wouldn't explain the lean condition on bank 1, would it?
My IAC has been making noise intermittently as well, but I don't see how a problem with it (or the MAF) would only affect cylinder 5.
Any suggestions?
Thanks,
Scott