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P1173 Diagnostic Trouble Code Discussion for January 2005

Electronic Throttle System Rationality


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Trouble Ticket Help Requests for DTC P1173
Help Request Posted
2001 Mazda MPV DX 2.5L Excessive Emissions VIN: JM3LW28Y11
P1173: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Malfunction. My question is, is there a common problem that will cause both #1 O2 sensors to read bad at the same time? I have seen this on Fords and have fixed vaccum lines to repair this problem without replacing O2 sensors. This vehicle has never had a tune-up. That is ...
January 12, 2005
1998 Mazda Millenia 2.5L Excessive Emissions, Hesitation VIN: JM1TA221W1
P1173: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Malfunction. Dear techs, especially Mazda experts: This car came in with the complaints that the C.E. light is on and it bogs on acceleration. The codes for 0/2 inversion simply mean they are showing rich. The car runs pig rich, as you can see in the CO readings, but it i...
January 15, 2005
2001 Mazda MPV DX 2.5L Excessive Emissions VIN: JM3LW28Y11
P1173: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Malfunction. My question is, is there a common problem that will cause both #1 O2 sensors to read bad at the same time? I have seen this on Fords and have fixed vaccum lines to repair this problem without replacing O2 sensors. This vehicle has never had a tune-up. That is ...
January 12, 2005
1998 Mazda Millenia 2.5L Excessive Emissions, Hesitation VIN: JM1TA221W1
P1173: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Malfunction. Dear techs, especially Mazda experts: This car came in with the complaints that the C.E. light is on and it bogs on acceleration. The codes for 0/2 inversion simply mean they are showing rich. The car runs pig rich, as you can see in the CO readings, but it i...
January 15, 2005