
1990 Cadillac DeVille 4.5L Poor Idle Quality
customer came in complaining about rough idling with check engine light [...] the code and found code 30 which is the idle speed control motor circuit malfunction. the engine runs rough only when check engine light is on. but when there's no check engine light...
FIX posted 6/5/2004
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Message Closed w/FIX
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VIN | 1G6CD5332L |
Engine | 4.5 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | Poor Idle Quality |
Occurs | Intermittently |
Trouble Codes
30 | idle speed control motor |
Message Closed w/FIX
Vehicle Data
1990 Cadillac DeVille
VIN | 1G6CD5332L |
Engine | 4.5 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | Poor Idle Quality |
Occurs | Intermittently |
Trouble Codes
30 | idle speed control motor |