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1991 Pontiac Firebird 3.1L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
Car was brought into shop and had been at 2 dealers and 2000.00 dollars later cust still has problem. Runs rough and fouls spark plugs. Too rich. We ran fuel pressure test and within specs. Scan data int 128 block lrn 108. o2 sensor runs at or around 540mv...
FIX posted 6/15/2000
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| VIN | 1G2FS23T4M |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| 45 | oxygen sensor circuit -rich exhaust indicated |
Message Closed w/FIX
Vehicle Data
1991 Pontiac Firebird
| VIN | 1G2FS23T4M |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| 45 | oxygen sensor circuit -rich exhaust indicated |
Video