The "Check Engine" light on my '95 Explorer XLT keeps coming on after a few miles of driving. I tripped the code (with a wire jumper, Key On Engine OFF) and it flashed a sequence indicating "332".
According to the Haynes manual, "332" means "EGR Valve Opening Not Detected"... BUT, it also states that the "test conditions" are "C, R" (Continuous Memory, Engine Running). Does this mean that my Key ON Engine OFF results are inaccurate?
Also, aside from the valve NOT opening, what else might cause the PCM's failure to detect it?