Audi Allroad running rough, misfiring. Pulled VCDS Codes
Been having an issue for almost 2 weeks now.
Still trying to find the answer. Car SUDDENLY started running rough. at idle and during acceleration. Misfires randomly. Little backfires.(pops) What I've done: Pulled and cleaned MAF. Unplugged MAF, didn't seem like much of a difference. I disconnected the battery a couple of times. Found a cracked Vacuum line on Pass. side PCV. fixed. Tried cleaning up gas. Checked air filter. It has moments and if I'm at about 3000 rpm and not accelerating it runs almost normally. I'm (right now) guessing MAF? Ordered a cable and loaded up VCDS Lite. Here's the codes I pulled: Address 01: Engine Labels: 078-907-551-AZA.LBL Controller: 4Z7 907 551 M Component: 2.7l V6/5VT G 0001 Coding: 06752 Shop #: WSC 02136 VCID: 4DEDEA3794C9 WAUYP54B11N156251 AUZ7Z0A1828266 12 Faults Found: 16805 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold P0421 - 35-10 - - - Intermittent 17978 - Shareware Version. To Decode all DTCs P1570 - 35-10 - Please Register/Activate - Intermittent 16684 - Shareware Version. To Decode all DTCs P0300 - 35-00 - Please Register/Activate 16686 - Cylinder 2: Misfire Detected P0302 - 35-10 - - - Intermittent 17521 - Shareware Version. To Decode all DTCs P1113 - 35-10 - Please Register/Activate - Intermittent 17887 - Shareware Version. To Decode all DTCs P1479 - 35-00 - Please Register/Activate 16688 - Cylinder 4: Misfire Detected P0304 - 35-00 - - 16685 - Shareware Version. To Decode all DTCs P0301 - 35-10 - Please Register/Activate - Intermittent 16689 - Shareware Version. To Decode all DTCs P0305 - 35-10 - Please Register/Activate - Intermittent 16486 - Mass Air Flow Sensor (G70): Signal too Low P0102 - 35-10 - - - Intermittent 18010 - Shareware Version. To Decode all DTCs P1602 - 35-10 - Please Register/Activate - Intermittent 16815 - Shareware Version. To Decode all DTCs P0431 - 35-00 - Please Register/Activate Readiness: 0000 0001 ------------------------------------------------------------------------------- Address 02: Auto Trans Labels: 01V-927-156.LBL Controller: 4Z7 927 156 A Component: AG5 01V 2.7l5VT USA 1718 Coding: 00002 Shop #: WSC 00000 VCID: 44FBCF134783 3 Faults Found: 18147 - Tiptronic Up Switch (F189): Short to Ground P1739 - 35-10 - - - Intermittent 18152 - Shareware Version. To Decode all DTCs P1744 - 35-10 - Please Register/Activate - Intermittent 18265 - Shareware Version. To Decode all DTCs P1857 - 35-10 - Please Register/Activate - Intermittent ------------------------------------------------------------------------------- Address 03: ABS Brakes Labels: 8D0-907-389.LBL Controller: 4Z7 907 389 Component: ABS/ESP allrad D57 Coding: 06397 Shop #: WSC 01234 VCID: 09651E272021 1 Fault Found: 18265 - Load Signal: Error Message from ECU P1857 - 35-10 - - - Intermittent |
Sounds like MAF to me.
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