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1992 Ford F-150 Custom 4.9L Excessive Emissions, Poor Fuel Economy, MIL Lamp on
Code 172, lean. According to our snapon scanner, o2 voltage is fixed at 2mv, always, even with koeo. Actual o2 voltage at sensor is 900mv with engine running. Computer appears to be ignoring o2 signal. Power and grounds good. Voltage was checked at sensor, and...
FIX posted 12/12/2002
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Message Closed w/FIX
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Related Documents & Media | VIN | 1FTEF15Y3N |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI |
| Emissions | CA |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 172 | lean |
Message Closed w/FIX
Vehicle Data
1992 Ford F-150 Custom
| VIN | 1FTEF15Y3N |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI |
| Emissions | CA |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 172 | lean |
Video