hi guys
i own a 2000 a6 avant 1.8T which has devoloped a misfiring fault. it generally drives on average at 30mph max with my foot to the floor with intermittent bursts of power that last no more than a couple of seconds.
can anyone help me in locating the problem, i can't afford to give it to audi so will try and replace the relevant parts myself once i know what is causing the problem.....
i've had suggestions of the maf filter or coil pack that could be causing this but these were suggested before i done the scan... i was able to arrange a vag-com scan today and this is what come back........
vag com - faults found......
17544 - Fuel Trim: bank 1 (add) system too rich - P1136
17536 - Fuel Trim: bank 1 (mult) system too lean - P1128
16684 - random/multiple cylinder misfirwe detected - P0300
16685 - cylinder 1 misfire detected - P0301
16687 - cylinder 3 misfire detected - P0303
16688 - cylinder 4 misfire detected - P0304
16686 - cylinder 2 misfire detected - P0302
17925 - main relay (j271) electrical malfunction - P1517
18010 - Power Supply Terminal 30: voltage too low - P1602
18034 - Power train Data Bus: missing message from TCU - P1626
17834 - EVAP Purge Valve (n80) open circuit - P1426
i called audi with the details of the main relay fault (17925 - main relay (j271) electrical malfunction - P1517) i thought that replacing this would be as good a place to start but after calling 3 dealers nobody could tell me what relay this is! anyone out there know????
thanks
i own a 2000 a6 avant 1.8T which has devoloped a misfiring fault. it generally drives on average at 30mph max with my foot to the floor with intermittent bursts of power that last no more than a couple of seconds.
can anyone help me in locating the problem, i can't afford to give it to audi so will try and replace the relevant parts myself once i know what is causing the problem.....
i've had suggestions of the maf filter or coil pack that could be causing this but these were suggested before i done the scan... i was able to arrange a vag-com scan today and this is what come back........
vag com - faults found......
17544 - Fuel Trim: bank 1 (add) system too rich - P1136
17536 - Fuel Trim: bank 1 (mult) system too lean - P1128
16684 - random/multiple cylinder misfirwe detected - P0300
16685 - cylinder 1 misfire detected - P0301
16687 - cylinder 3 misfire detected - P0303
16688 - cylinder 4 misfire detected - P0304
16686 - cylinder 2 misfire detected - P0302
17925 - main relay (j271) electrical malfunction - P1517
18010 - Power Supply Terminal 30: voltage too low - P1602
18034 - Power train Data Bus: missing message from TCU - P1626
17834 - EVAP Purge Valve (n80) open circuit - P1426
i called audi with the details of the main relay fault (17925 - main relay (j271) electrical malfunction - P1517) i thought that replacing this would be as good a place to start but after calling 3 dealers nobody could tell me what relay this is! anyone out there know????
thanks