P2237 Diagnostic Trouble Code Discussion for July 2020
Air Fuel Sensor 1 (Bank 1 Sensor 1) Pumping Current Signal Open
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| Help Request | Posted | |
| 2010 Audi A4 Quattro Avant 2.0L Rich VIN: WAUWFAFL2A P2237: O2 positive current control circuit open. We need some help with this Audi A4. It has a rich condition and we can't seem to find the cause. It had a code for the O2 sensor (fuel ratio sensor) so that was replaced. At a previous visit the vehicle had both the crankcase vent and the oil separator re... |
July 16, 2020 |
