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Home >> Oldsmobile >> 1988 >> Custom Cruiser >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (DFI ECM Tests W/Codes) >> ECM Code EO30 - Idle Speed Control Circuit Problem >> DFI ECM Tests W/Codes >> Failure Conditions:

Failure Conditions:

WARNING: This page is about a different car, the 1988 Cadillac Seville and 1988 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

ISC plunger extending with TPS position less than or equal to 9 degrees or ISC retracting with TPS position greater than or equal to 2.5 degrees for 15 seconds.