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1991 Ford Taurus GL 3.0L MIL Lamp on
Hi everyone...this is Ford for ya!! (sarcastically) Customer complaint of CEL light 'on'. Scanned system, and came up with rear bank O2 always lean. Front O2 switching nicely. Now here's the rub...this car only has '1' O2 sensor. Customer also states that this...
FIX posted 12/30/1998
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| VIN | 1FACP52U8M |
| Engine | 3.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | Ca Emissions |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 172 | Lean mixture oxygen voltage is low and not switching on single or right/rear sensors on dual EGO system. |
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Vehicle Data
1991 Ford Taurus GL
| VIN | 1FACP52U8M |
| Engine | 3.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | Ca Emissions |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 172 | Lean mixture oxygen voltage is low and not switching on single or right/rear sensors on dual EGO system. |
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