I got a 0320 code the other morning after a few misses. I checked the voltage to the sensor and it showed 5, so I replaced the sensor. It still missed every so often and throws the code. It may run a few days with the code off then start missing again, and sometimes I have sit and wait around 5-10 minutes for it to start. the book said if voltage and sensor are ok to get the PCM checked at the dealer. Anyone know something else to check first, or if I can replace the PCM with one from a wreaked one of the same year model?