Misfiring my balls off and need help please......
Thread Starter
AudiWorld Senior Member
Joined: Feb 2007
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Misfiring my ***** off and need help please......
So my cylinder 5 and 6 at idle misfire over 15 times per Vag Com interval of I believe a minute and half. Block 14 and 15 show the first 4 cylinders not mfing at all. 5 and six are over 20 sometimes as much as 35 and it stores three codes. Never a check engine light. I also noticed that block 2 shows the engine load at 15.8 to 16.5% during idle. When I turn on the Ac the engine load goes up to 24ish and my misfires decline dramaticly. To the point of maybe 3 to 4 per cycle and once again nothing on the first 4 cylinders.
I have swapped plugs, coil packs, ignition amps. I have no boots leak and no vacume leak. The car runs great and doesn't misfire at all during pulls. Plugs are torqued and are the bosch platins everybody talks about. They are torqued to 30nm per bentley.
The car is APR OTS stage III. I am starting to think that I may have bad valves!
SWEET!
I have swapped plugs, coil packs, ignition amps. I have no boots leak and no vacume leak. The car runs great and doesn't misfire at all during pulls. Plugs are torqued and are the bosch platins everybody talks about. They are torqued to 30nm per bentley.
The car is APR OTS stage III. I am starting to think that I may have bad valves!
SWEET!
AudiWorld Super User
Joined: Dec 2002
Posts: 17,771
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use lemi and increase the idle load untill you see 20-21% ch2 (almost like with ac on)
for the hell of it .. swap the plugs on the ignition amps on top of the airbox.
last thing that u might do is swap injectors around they can be problematic too (yeah even rs4 parts can go bad)
last thing that u might do is swap injectors around they can be problematic too (yeah even rs4 parts can go bad)
Thread Starter
AudiWorld Senior Member
Joined: Feb 2007
Posts: 635
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Will raising the engine load by itself cause any other issues.....
everything else you mentioned I have already done. Wouldn't a bad injector cause issues under load as well?
I have no issues under load.
I have no issues under load.
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