Need Help - 5 bad codes. Could it be just bad computer?
I have a 1999 Ford Ranger 2.5L 2WD. The check engine light is on and displaying 5 codes when I scan it. P1506 (IAC overspeed error), P0135 (O2 bank 1 sensor 1), P1451 (Evap), P0141 (O2 bank 1 sensor 1), P1451 (Evap), P0141 (O2 bank 1 sensor 2), and P1409 (EGR Vac). I need to know how to approach fixing it. While the truck is running, I unplug all the sensors and the truck continues to run. No change in idling whatsoever. Am I looking at a defective PCM? If so, how difficult is it to replace. I can get the new computer cheap but need to change it myself. Thanks.
I found that the PCM is on passenger side, behind kick plate along door. Is that correct? How difficult is it to replace? I've had my Ranger for 10 years with 176,000 miles. I'm not ready to send it to the graveyard yet. Please Help!
It wont pass inspection in NYS until I get the codes cleared and fixed.
Last edited by mrsquirrels; 06-25-2012 at 12:39 PM.
Reason: new info