Originally posted by johnoh:
..Well the new DPFE stopped throwing 332, but throws 335 instead - "PFE sensor circuit voltage out of Self-Test range". There is no longer a lighted CEL when driving - but when I check for codes I get 335. Interestingly, when I reset the pcm and check for codes again, without even having driven the car since resetting, I get 335 - so it must register without even turning on the engine.

Because this was confusing me I picked up yet another dpfe and tried it - I get the same situation - no lighted CEL, but 335 is there. Anyone know what the deal is here?


Check connector and wiring.

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles