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1997 Buick LeSabre Custom 3.8L Poor Idle Quality, MIL Lamp on, idles to high
Replace upper intake with updated plenum, Customer came back complaining of check engine light on & High RPMS. PO121A Code Reoccurs. Have tried adjusting TPS , Cleaned the throttle plate, Added additional ground to ground wire on tps. Disconnect to see if idle...
FIX posted 10/18/2005
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Message Closed w/FIX
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17 Replies Received
17 Replies Received
Related Documents & Media | VIN | 1G4HP52K8V |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / mpfi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, MIL Lamp on, Idles to High |
| Occurs | Intermittently |
| Misc. | Lesabre |
Trouble Codes
| P0121 | Throttle Position Sensor Range/Performance |
Message Closed w/FIX
Vehicle Data
1997 Buick LeSabre Custom
| VIN | 1G4HP52K8V |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / mpfi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, MIL Lamp on, Idles to High |
| Occurs | Intermittently |
| Misc. | Lesabre |
Trouble Codes
| P0121 | Throttle Position Sensor Range/Performance |
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