Note On Intermittents

Manipulate MAP sensor connector, MAP wiring and PCM connector while observing PCM data PD02. Apply and release vacuum to MAP sensor vacuum port. If PCM data PD02 immediately jumps to less than 15 kPa, repair intermittent MAP sensor fault. If wiring and connectors are okay, substitute a known good MAP sensor and retest.

Fig 1: Code P032 Schematic, Open MAP Sensor

Courtesy of GENERAL MOTORS CORP.

Fig 2: Code P032 Diagnostic Flow Chart, Open MAP Sensor

Courtesy of GENERAL MOTORS CORP.