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P2238 Diagnostic Trouble Code Discussion for May 2007

Air Fuel Sensor (Bank 1 Sensor 1) I/P Line Low Voltage

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Trouble Ticket Help Requests for DTC P2238
Help Request Posted
2006 Toyota Tundra SR5 4.7L MIL Lamp on VIN: 5TBBT44606
P2238: Air Fuel Sensor (Bank 1 Sensor 1) Pumping Current Signal Low. this is a weird one guys,both front a/f sensors tested bad so i replaced them.after a roadtest the mil came back on.carried out furthur diag. found no open or short circuits.all wiring tested fine so i replaced the ecm.carried out active test and a/f sensors o...
May 03, 2007