Note On Intermittents

WARNING: This page is about a different car, the 1992 Cadillac Seville and 1992 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

PCM Code E032 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 ED02. Apply and release vacuum to MAP sensor vacuum port using a vacuum source. If PCM parameter ED02 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.

Fig 1: PCM Code E032, Schematic, Open MAP Sensor Circuit

Courtesy of GENERAL MOTORS CORP.

Fig 2: PCM Code E032, Flow Chart, Open MAP Sensor Circuit

Courtesy of GENERAL MOTORS CORP.

Fig 3: PCM Code E032