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1995 Pontiac Grand AM 3.1L Poor Idle Quality, Hesitation, High Idle always
Checked battery cables and grounds and Ecm powers and grounds (clean and tight). Car runs and drives well except for high Idle and occaisonal flat spot on acceloration.O2s .84 -.75v, fuel trim 128, desired idle 788,actual idle [...] rpm,mat OK,coolant 210F,map...
FIX posted 2/8/1999
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Message Closed w/FIX
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| VIN | 1G2N15M5SM |
| Engine | 3.1 L / 6 cyl |
| Emissions | Not OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, High Idle Always |
| Occurs | Cold, Hot, on Decel, Idle |
| Misc. | 2Door |
Message Closed w/FIX
Vehicle Data
1995 Pontiac Grand AM
| VIN | 1G2N15M5SM |
| Engine | 3.1 L / 6 cyl |
| Emissions | Not OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, High Idle Always |
| Occurs | Cold, Hot, on Decel, Idle |
| Misc. | 2Door |
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