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Ford Mustang DTC P1413

Q. Hi Mr. Vincent Ciulla, I own a 1999 Ford Mustang. Last week my Check Engine Soon light came on, and I used the scanner it read code P1413 which is a secondary air injection monitor circuit low input. Can you tell me how to fix this problem?

Thank you for your prompt attention.
Best regard,
Jason

Ford Mustang DTC P1413

A. It is most likely either a hose or line that fell off, broke or is kinked, or a bad A.I.R. pump. What you can do is unplug the A.I.R. pump connector. Ground the black wire and, with a 30 amp fused jumper wire, apply battery voltage to the white wire.

If the pump runs, then chances are the pump is good and the problem is with a hose. If not, then the A.I.R. pump will need to be replaced.

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