Note On Intermittents
WARNING: This page is about a different car, the 1993 Cadillac Seville and 1993 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
PCM Code P032 can be set by an open 5-volt reference signal between PCM and sensor, an open MAP signal between sensor and PCM or a defective MAP sensor. Manipulate affected wiring and connectors while observing PCM parameter PD02. Apply and release vacuum to MAP sensor vacuum port using a vacuum source. If PCM parameter PD02 displays less than 15 kPa, condition has been induced and cause of intermittent can be repaired. If wiring and connectors are okay, substitute a known good sensor, and retest.