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Code 159 caused by a dirty MAF hot wire. 95 Mazda 626, 2.0L.
Posted to Technical Tips Forum on 5/10/2003 8 Replies

This is a first for me, a DTC 159 [air flow sensor out of range] caused by a dirty air flow sensor hot wire. This was an on demand code, not a stored code. Cleaned the air flow sensor hot wire, and the code was gone. I seen my share of dirty Ford/Mazda air flo... Login to read more.

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