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PO422 code what is the fix?
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asked
Nov 13, 2018
by
RICK
WHAT TYPICALLY CAUSES THIS CODE TO APPEAR?
Vehicle:
2001 FORD TAURUS 3.0 LITER VULCAN
po422
evap
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Oct 2, 2018
by
Carguy1
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HI there,
This code is for the catalytic converter on bank 1. The main converter is working below threshold. This can be caused by the converter itself, the rear O2 sensor or a problem with an exhaust leak.
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