
2004 Ford Focus ZX3 2.3L MIL Lamp on
This Focus is lean and setting P0171 Lean Exhaust. Engine runs OK, has smooth idle. At idle MAF is 3 grams sec (.78v), +11% LT fuel trim. At 3,000 RPM no load MAF is 8 grams sec (1.4v), +26% LT fuel trim. Did a smoke test and found no vacuum leaks. Fuel pressu...
FIX posted 1/12/2009
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Message Closed w/Summary
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VIN | 3FAFP31Z84 |
Engine | 2.3 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/Summary
Vehicle Data
2004 Ford Focus ZX3
VIN | 3FAFP31Z84 |
Engine | 2.3 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |