LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 1990 >> Allante F7/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> ECM DTC EO32: Open Map Sensor Circuit >> Notes On Intermittents
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Notes On Intermittents

Manipulate MAP sensor connector, MAP wiring, and ECM connector while observing ECM data ED02 Apply and release vacuum to the MAP sensor vacuum port using a vacuum source. If the ECM data ED02 immediately jumps to less than 15 kPa, repair intermittent MAP sensor fault. If wiring and connector check out OK, substitute a known good MAP sensor and retest.