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Home >> Buick >> 1990 >> Reatta 2D Convertible, 440T4/ME9 >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls - Tests W/Codes) >> ECM Trouble Code Charts >> ECM Code EO31: Shorted Map Sensor Circuit >> Failure Conditions:
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Failure Conditions:

WARNING: This page is about a different car, the 1990 Cadillac Seville and 1990 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

MAP value high for at least .2 second.