¿Cuáles son las causas del código P01F7?

Faulty oxygen sensor (Bank 1 Sensor 4). Clogged air filter. Fuel pressure too high. Leaking fuel injector. Problem with the engine control module (ECM)

¿Qué síntomas produce el código P01F7?

Check Engine light is on. Poor engine performance. Reduced fuel economy. Failed emissions test. Black smoke from exhaust

P01F7 — O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 4

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Descripción

This code indicates that the oxygen sensor (Bank 1 Sensor 4) is stuck reporting a rich condition, even when the engine is running lean. A rich condition means there's too much fuel or not enough air in the exhaust.

Causas comunes

Faulty oxygen sensor (Bank 1 Sensor 4)
Clogged air filter
Fuel pressure too high
Leaking fuel injector
Problem with the engine control module (ECM)

Síntomas

Check Engine light is on
Poor engine performance
Reduced fuel economy
Failed emissions test
Black smoke from exhaust