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1990 Cadillac Seville 4.5L Poor Idle Quality
I need a little help with this Caddy. It idles and drives sometimes at [...] rpm's. The owner has replaced the IAC. All scan tool data looks fine and no codes. For some reason the ECM is stepping the motor up. It seems to be worse in open loop. Cannot find any...
FIX posted 6/27/2002
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Related Documents & Media | VIN | 1G6KS5333L |
| Engine | 4.5 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBD I |
| Symptoms | Poor Idle Quality |
| Occurs | Intermittently |
Message Closed w/FIX
Vehicle Data
1990 Cadillac Seville
| VIN | 1G6KS5333L |
| Engine | 4.5 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBD I |
| Symptoms | Poor Idle Quality |
| Occurs | Intermittently |
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