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1991 BMW 735i 3.4L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on
Having a little trouble with this one, not very familiar with BMW. The car surges at idle, and would fall on its face when you accelerate, or in P or N, I checked the O2 sensor and I wasn't getting any voltage for the heater circuit. I replaced the O2 relay an...
FIX posted 1/30/2003
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| VIN | [No VIN Available] |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI (LAMDA CONTROL) |
| Emissions | US |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 10 | o2 control |
| 28 | o2 sensor circuit |
Message Closed w/FIX
Vehicle Data
1991 BMW 735i
| VIN | [No VIN Available] |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI (LAMDA CONTROL) |
| Emissions | US |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 10 | o2 control |
| 28 | o2 sensor circuit |
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