Question about Ford Focus
All three of these error codes point to the secondary air injection pump
This pump pumps air into the exhuast only when warming up... hence the light when you start the car.
Check that the pump runs for about 30 seconds when you start the car cold.
Be sure the wiring to the pump is not damaged.
The pump is controlled by a relay, check that the relay is working
Posted on May 20, 2011
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Posted on Jan 02, 2017
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