2.0T - still misfires when colder
#1
AudiWorld Senior Member
Thread Starter
2.0T - still misfires when colder
Car is now (again) showing random misfires on all 4 cylinders.
Started to occur when morning temps dropped below 30 over the last 2 days.
Runs fine when warm.
Recently done;
- carbon build intake valves (VERY bad build up; misfires, barely starting)
- PCV valve
- new coils
- new plugs
- rear main seal
Still has oil leak at timing cover.
Unrelated: DSG service done.
When car was brought to me today, it was warm, engine running and sounding perfect, no misfires. Yesterday, (not so) cold start, misfiring, CEL on.
What else can I check and troubleshoot to determine the cause of the misfires?
110k miles on the car.
Started to occur when morning temps dropped below 30 over the last 2 days.
Runs fine when warm.
Recently done;
- carbon build intake valves (VERY bad build up; misfires, barely starting)
- PCV valve
- new coils
- new plugs
- rear main seal
Still has oil leak at timing cover.
Unrelated: DSG service done.
When car was brought to me today, it was warm, engine running and sounding perfect, no misfires. Yesterday, (not so) cold start, misfiring, CEL on.
What else can I check and troubleshoot to determine the cause of the misfires?
110k miles on the car.
Thread
Thread Starter
Forum
Replies
Last Post
AudiBoston34
A8 / S8 (D3 Platform) Discussion
12
05-10-2016 12:53 PM
jpskate8
A4 (B8 Platform) Discussion
11
08-04-2014 05:43 AM
Jackmup
A6 / S6 (C5 Platform) Discussion
3
05-21-2009 04:38 AM
Summit
A4 (B5 Platform) Discussion
4
01-28-2000 06:39 AM