Running on 5 cylinders when cold... changed the coilpack and plugs...
04-02-2007, 09:04 AM
#1
AudiWorld Senior Member
Thread Starter
Join Date: Sep 2002
Posts: 1,698
Likes: 0
Received 0 Likes
on
0 Posts
Running on 5 cylinders when cold... changed the coilpack and plugs...
The engine, when cold, will sometime fire on 5 cylinders only. VAGCOM pointed to cylinder #5, so I changed the coilpack and changed all 6 plugs (they were due anyway). No change... After 1 or 2 miles (when engine runs more hot), the engine fires all 6 cylinders again.
Where to point next?
Where to point next?
04-02-2007, 09:17 AM
#3
Senior Member
Join Date: Jan 2001
Posts: 5,077
Likes: 0
Received 0 Likes
on
0 Posts
#1 try swapping plug and coil from a known good cylinder. #2 swap injector from a good cyl. #3
Check oil pressure. If too high (as with a sticking pressure relief valve) can cause some or all lifters to stick open and show as misfires.
Good luck.
Good luck.
04-02-2007, 09:32 AM
#4
AudiWorld Senior Member
Join Date: Mar 2005
Location: Al Asad Iraq
Posts: 627
Likes: 0
Received 0 Likes
on
0 Posts
try swapping power output stages as DAP said...
if the problem moves to a different bank after you swap them the power stage is your problem, i have an extra one, email me...
04-02-2007, 10:17 AM
#5
AudiWorld Super User
Join Date: Aug 2002
Location: San Francisco
Posts: 6,762
Likes: 0
Received 0 Likes
on
0 Posts
Speaking of that, I have a random/stupid question...
If one wanted to save gas during city commuting where it was certain there would be no need for much power, could you disconnect a couple fuel injectors and spark plugs without harming the engine? I know that some autos have this type of electronic control but what about on our cars? Just curious.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
Pieter
Audi 100 / A6 (C4 Platform)
8
02-06-2009 08:23 PM
AbnormallyAspirated
S4 / RS4 (B5 Platform) Discussion
4
08-05-2002 08:39 AM