CODE SAYS LEAN ON BANK 2

2004 Ford F-150

Tiny

Peanuts54

August, 16, 2013 AT 7:05 AM

Service engine light on indicating lean on bank 2. What is the most likely cause? Oxygen sensor? Which side, which one? Or something else? I have been told just start replacing the sensors but that is crazy, waste of money. Could it be a vacuum problem? I doubt an injector pressure problem as I believe it would be both sides, am I wrong?

1 Answer

Tiny

Wrenchtech

August, 16, 2013 AT 7:59 AM

Bank 2 is the drivers side. I would look for any vacuum or exhaust leaks first but since it's only one bank, it MAY be a bad sensor.

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