dayofthejackal
Registered User
Recently bought a 2001 A3 (AUM). It had a lumpy idle so I replaced the MAF and seemed to cure it.
I gave it a service then it started to run badly at low revs, fine on turbo. Then it started to idle badly.
I plugged into VCDS and it showed misfire on cylinder 2 and coil ground problem.
I replaced the coil and it was still the same. I then noticed the coil wiring was cracked.
I replaced the coil wiring loom and at the same time simplified the breather pipes and fitted an oil catch can.
I came to start it and it wouldn't start. It turns over but nothing.
I plugged into VCDS again:
6 Faults Found:
17766 - Cylinder 2 Ignition Circuit: Open Circuit
P1358 - 35-10 - - - Intermittent
16396 - Bank 1: Camshaft A (Intake): Advance Setpoint not Reached (Over-Retarded)
P0012 - 35-10 - - - Intermittent
17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
P1297 - 35-10 - - - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17535 - Fuel Trim: Bank 1 (Mult): System too Rich
P1127 - 35-10 - - - Intermittent
16706 - Engine Speed Sensor (G28): No Signal
P0322 - 35-00 - -
Readiness: 0010 1101
-------------------------------------------------------------------------------
Address 08: Auto HVAC
Controller: 8L0 820 043 H
Component: A3 KLIMAAUT
Coding: 00041
Shop #: WSC 06435
Note: Excessive Comm Errors
I gave it a service then it started to run badly at low revs, fine on turbo. Then it started to idle badly.
I plugged into VCDS and it showed misfire on cylinder 2 and coil ground problem.
I replaced the coil and it was still the same. I then noticed the coil wiring was cracked.
I replaced the coil wiring loom and at the same time simplified the breather pipes and fitted an oil catch can.
I came to start it and it wouldn't start. It turns over but nothing.
I plugged into VCDS again:
6 Faults Found:
17766 - Cylinder 2 Ignition Circuit: Open Circuit
P1358 - 35-10 - - - Intermittent
16396 - Bank 1: Camshaft A (Intake): Advance Setpoint not Reached (Over-Retarded)
P0012 - 35-10 - - - Intermittent
17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
P1297 - 35-10 - - - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17535 - Fuel Trim: Bank 1 (Mult): System too Rich
P1127 - 35-10 - - - Intermittent
16706 - Engine Speed Sensor (G28): No Signal
P0322 - 35-00 - -
Readiness: 0010 1101
-------------------------------------------------------------------------------
Address 08: Auto HVAC
Controller: 8L0 820 043 H
Component: A3 KLIMAAUT
Coding: 00041
Shop #: WSC 06435
Note: Excessive Comm Errors