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P2240 Diagnostic Trouble Code Discussion for May 2014

Heated Oxygen Sensor (Bank 2 Sensor 1) Pumping Current Control Circuit


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Trouble Ticket Help Requests for DTC P2240
Help Request Posted
2006 Mercedes-Benz CLK350 3.5L MIL Lamp on VIN: WDBTJ56J16
P2240: Left o2 sensor before cat. Voltage too high. ... before cat voltage too high,P2240 Left O2 sensor before cat voltage too high. I replaced Maf sensor then code P2240 came back after test drive. then I replaced both front O2 sensors, smoke tested found no leaks. Looks like the left side bank (P2240) its to...
May 05, 2014
2006 Mercedes-Benz CLK350 3.5L MIL Lamp on VIN: WDBTJ56J16
P2240: Left o2 sensor before cat. Voltage too high. ... before cat voltage too high,P2240 Left O2 sensor before cat voltage too high. I replaced Maf sensor then code P2240 came back after test drive. then I replaced both front O2 sensors, smoke tested found no leaks. Looks like the left side bank (P2240) its to...
May 06, 2014