FixVault

Note On Intermittents

Code EO32 can be set by an open 5-volt reference signal between ECM and sensor, an open MAP signal between sensor and ECM or a defective MAP sensor. Manipulate affected wiring and connectors while observing ECM parameter ED02. Apply and release vacuum to MAP sensor vacuum port using a vacuum source. If ECM 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: ECM Code EO32 Circuit Diagram
G90F21720
Fig 2: ECM Code EO32 Flow Chart
G90D13709