Audi a4 b8 1.8tsfi rough idle
09-17-2016, 01:47 AM
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Audi a4 b8 1.8tsfi rough idle
Hi all
Still on with my problems.
Still car running rough had both O2 sensors replaced mass flow sensor replaced new spark plugs and checked pcv valve all ok this all started with code showing po171 got no air leaks don't know what to do next
Please help if someone had same problems
Thanks in advance
Still on with my problems.
Still car running rough had both O2 sensors replaced mass flow sensor replaced new spark plugs and checked pcv valve all ok this all started with code showing po171 got no air leaks don't know what to do next
Please help if someone had same problems
Thanks in advance
09-19-2016, 07:26 AM
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Didn't know A4 B8 had a 1.8T engine option? System lean could be related to the high pressure fuel pump. Any other symptoms? fuel mileage still the same? performance still the same?
On my 2010 A4 B8, I used to have rough idle due to using Mobile 1 0w40 motor oil. Went back to 5w40 motor oil which resolve the rough idle for me. 0w40 show it is within the spec. of the owner manual.
On my 2010 A4 B8, I used to have rough idle due to using Mobile 1 0w40 motor oil. Went back to 5w40 motor oil which resolve the rough idle for me. 0w40 show it is within the spec. of the owner manual.
09-19-2016, 10:50 AM
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Didn't know A4 B8 had a 1.8T engine option? System lean could be related to the high pressure fuel pump. Any other symptoms? fuel mileage still the same? performance still the same?
On my 2010 A4 B8, I used to have rough idle due to using Mobile 1 0w40 motor oil. Went back to 5w40 motor oil which resolve the rough idle for me. 0w40 show it is within the spec. of the owner manual.
On my 2010 A4 B8, I used to have rough idle due to using Mobile 1 0w40 motor oil. Went back to 5w40 motor oil which resolve the rough idle for me. 0w40 show it is within the spec. of the owner manual.
Mileage still the same a little hessident on acceleration.
Just had service will check what oil they put in tomorrow.
Will also check pressure fuel
Thanks again
01-08-2023, 01:34 PM
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03-15-2023, 10:53 AM
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i have a similar issue with my A4 3,2 2009.
engine start is okay,
cold acceleration is very fantastic
warm acceleration slight acceleration is rough
warm hard acceleration when i press the pedal past mid, no vibration and its smooth acceleration.
kindly assist. anyone?
engine start is okay,
cold acceleration is very fantastic
warm acceleration slight acceleration is rough
warm hard acceleration when i press the pedal past mid, no vibration and its smooth acceleration.
kindly assist. anyone?
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