P0171 Diagnostic Trouble Code Discussion for December 2024
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2004 Ford Focus LX 2.3L Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1FAFP33Z34 P0171: Bank 1 Sensor 1 stuck lean. Customer complaint: Surges, chugs, stalls while driving. Very, very intermittent. I have driven for several weeks and only got the failure 2 or 3 times. Vehicle drives perfect 99% of the time. Smooth idle, great power on accel. Every few days it starts ... |
December 17, 2024 |
