P2237 Diagnostic Trouble Code Discussion for September 2011
Air Fuel Sensor 1 (Bank 1 Sensor 1) Pumping Current Signal Open
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| Help Request | Posted | |
| 2003 Acura MDX 3.5L Misfire, MIL Lamp on VIN: 2HNYD18693 P2237: Air Fuel Sensor (Bank 1 Sensor 1) I/P Line High Voltage. Replace engine with used (see repair history). All went well, first road test the vehicle ran great. Performed alignment, road tested again to check steering wheel centering, vehicle misfired, code P0304 - found #4 coil was no good, swapped it out, road tested... |
September 23, 2011 |
