P2237 Diagnostic Trouble Code Discussion for February 2014
Air Fuel Sensor 1 (Bank 1 Sensor 1) Pumping Current Signal Open
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| Help Request | Posted | |
| 2008 Toyota Avalon XLS 3.5L MIL Lamp on VIN: 4T1BK36B88 P2237: a/f pumping circuit open. Kind of a strange problem with this car as codes will set but freeze frame always shows fuel trims are within zero to three of perfect at time of failure, car runs very good and is smooth. Find no vacume leaks and only shows bank 1 as a problem but fuel trims ... |
February 25, 2014 |
