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OBD 2 Puzzle: HO2S Heater TTA
Posted to Technical Discussion Forum on 3/23/1999 15 Replies

Here is another puzzle...

98 Astro in with a DTC stored. The complaint is that the engine ran rough and the MIL came on. It is now running smoothly in my stall.

Freeze Frame

Failure Record 1

Failure Record 2

Misfire Data

Do I need to pursue the HO2... Login to read more.

Files Referenced:

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