P2187 Diagnostic Trouble Code Discussion for September 2018
Fuel System Too Lean At Idle
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| Help Request | Posted | |
| 2009 Audi A4 Quattro Cabriolet 2.0L Poor Idle Quality, Hesitation VIN: WAUDF48H89 P2187: bank 1 lean at idle. Very intermittent lean condition leading to rough idle. Short term fuel trim is pegging out. (freeze frame data shows, haven't got it to act up while in the shop yet) We've replaced the diverter valve and crankcase vent valves (both confirmed faulty) at ... |
September 20, 2018 |
