LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 1988 >> Seville STS >> Repair and Diagnosis >> Engine Performance >> System >> DFI ECM Tests W/Codes >> ECM Code EO30 - Idle Speed Control Circuit Problem >> DFI ECM Tests W/Codes >> Test Conditions:
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Conditions:

Codes EO21, EO22, EO24, EO26 and EO27 clear. Vehicle speed equals zero. Throttle switch closed. Battery voltage greater than or equal to 11 volts. Engine speed is greater than 152 RPM, which is different than desired. Not a cold start.

scientia non olet · About LEMON Manuals