Engine light on
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Engine light on
Got a Mazda Facelift 2010, cx7 turbo. I've got a trouble code, DTC PO172. (System rich, bank 01) I've replaced the O2 Sensor. The air intake sensor, the purge valve, tested fuel pressure, all okay. Suspect blocked catalytic converter as my short fuel trim is reading -25 stuck and my long fuel trim is reading -3.9. Is it the Catalytic converter?
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trace66usa
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Jul 3, 2008 04:08 PM