
2001 Mazda MPV DX 2.5L Excessive Emissions
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 ...
FIX posted 1/27/2005
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Message Closed w/FIX
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VIN | JM3LW28Y11 |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0304 | Cylinder 4 Misfire Detected |
P0421 | Catalytic Converter Efficiency (Bank 1) |
P0481 | Cooling Fan 2 Relay Control Circuit Malfunction |
P1170 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Stuck At Mid-Range |
P1173 | Electronic Throttle System Rationality |
Message Closed w/FIX
Vehicle Data
2001 Mazda MPV DX
VIN | JM3LW28Y11 |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0304 | Cylinder 4 Misfire Detected |
P0421 | Catalytic Converter Efficiency (Bank 1) |
P0481 | Cooling Fan 2 Relay Control Circuit Malfunction |
P1170 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Stuck At Mid-Range |
P1173 | Electronic Throttle System Rationality |