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1996 Chevrolet Cavalier 2.2L Excessive Emissions, Poor Idle Quality, Hesitation, MIL Lamp on
Car runs fine in open-loop, it has great vacuum idles fine. Once in closed-loop the vacuum slowly drops from 18in/hg - 8in/hg and eventually stalls out. I see this happening on the scan tool and actual vacuum gauge. If I unplug the O2 sensor or tsp to force it...
FIX posted 8/16/2014
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Message Closed w/FIX
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12 Replies Received
12 Replies Received
Related Documents & Media | VIN | 3G1JC1247T |
| Engine | 2.2 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | Fuel Injection / SEFI |
| Emissions | Not OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, MIL Lamp On |
| Occurs | Hot, Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
1996 Chevrolet Cavalier
| VIN | 3G1JC1247T |
| Engine | 2.2 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | Fuel Injection / SEFI |
| Emissions | Not OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, MIL Lamp On |
| Occurs | Hot, Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Video