Note On Intermittents

WARNING: This page is about a different car, the 1989 Cadillac Fleetwood and 1989 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

Code E32 can be set by the following:

Open 5 volt reference between ECM and sensor.
Open in MAP signal between sensor and ECM.
Defective MAP sensor.

Manipulate affected wiring and connectors while observing ECM parameter P.0.2. Apply and release vacuum to MAP sensor vacuum port using a vacuum source. If ECM parameter P.0.2 displays less than 17 kPa, condition has been induced and cause of intermittent can be repaired.

Fig 1: Code E32 Schematic - Open Map Sensor Circuit

Fig 2: Code E32 Flow Chart - Open Map Sensor Circuit