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1998 Ford F-150 Lariat 5.4L MIL Lamp on, Running rich
Customer brought vehicle in stating check engine light is on. Found codes p0172 and p0175 stored in pcm. Fuel trims pegged at about -20% on both banks. Whenever driving vehicle fuel trims will go slightly positive about +5-10% on both banks. But whenever y...
FIX posted 10/23/2019
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Message Closed w/FIX
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22 Replies Received
22 Replies Received
Related Documents & Media | VIN | 1FTRX18LXW |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / P0172 P0175 RUNNING RICH |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Running Rich |
| Occurs | Idle |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1998 Ford F-150 Lariat
| VIN | 1FTRX18LXW |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / P0172 P0175 RUNNING RICH |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Running Rich |
| Occurs | Idle |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
Video