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2001 Ford F-150 XL 4.2L Poor Fuel Economy, MIL Lamp on, lean codes 171,174
I get these 2 lean codes 171 and 174 every couple days and my gas mileage has gone way down. I have replaced fuel filter,air filter, checked with carb cleaner and propane for vacuum leaks, cleaned MAF with MAF aerosol cleaner. I have been told I need updated u...
Summary posted 2/18/2008
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Related Documents & Media | VIN | 2FTZX17241 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy, MIL Lamp on, Lean Codes 171,174 |
| Occurs | Always |
| Misc. | Supercab |
Trouble Codes
| 171 | lean bank one |
| 174 | lean bank two |
Message Closed w/Summary
Vehicle Data
2001 Ford F-150 XL
| VIN | 2FTZX17241 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy, MIL Lamp on, Lean Codes 171,174 |
| Occurs | Always |
| Misc. | Supercab |
Trouble Codes
| 171 | lean bank one |
| 174 | lean bank two |
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