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Thread: Ford Escort 1.9L code 172 O2 sensor fault/lean

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04-29-2008, 08:11 PM	#3 (permalink)
ELH Junior Member Join Date: Apr 2008 Posts: 2	It is a 1995 ford escort wagon OBD I I have all the codes fixed The only one left is the 172 R, C HEGO (HO2S) sensor fault/lean I have replaced the mass flow sensor I have replaced idle solenoid valve new fuel filter new plugs and wires and i added injector cleaner to my fuel I also cleaned the throttle body as well The problem was there before i made all these fixes and the repairs where made so i could get to this last test with engine running and thats when it gave me the 172 code

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