2008 Mitsubishi Lancer Evolution MR 2.0L MIL Lamp on
Replace both o2 sensors and same problem. Have observed inactivity at times at start up. Replaced sensors again with denso sensors again no change. Must mention originally came in with only the P0134. Now we have a P0420 also.
Summary posted 3/28/2017
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Vehicle Data2008 Mitsubishi Lancer Evolution MR
Trouble Codes
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Message Closed w/Summary
Vehicle Data
2008 Mitsubishi Lancer Evolution MR
VIN | JA3AW56V68 |
Engine | 2.0 L / 4 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |