Injector issue

[Jdd212]

Hi guys new too this ..ive recently bought a audi a6 avant 3lquattro v6 .
Suspected manifold gasket leak which turned out too be the injector seal ..pulled injector out and renewed seal and copper washer along with cleaning injector and bore.put back together and now running like an old tractor ..lumpy on tickover.no acceleration & smoking like mad..pulled injector back out and oil on it ? Would it be ok too try a slightly bigger seal? Along with having the injector tested ..bit of a coincidence having took the injector out and now its worse.injector was carboned up like mad which I'm thinking was causing the seal now I've cleaned and a normal seal is not sealing the bore ..IF this makes sense ..please help guys

 

[Leo Komninos]

Had similar thing with my a6 c5 2.7t avant quattro tip 2001, turned out to be two bad injectors and am still tracing down pcv leaks.
Have thought about getting some Chinese replacement injectors, but think it will complicate matters, as they could be bad from new!
Good luck, and check MAF.
Advise going through measuring blocks and checking values of: timing adv., lambdas, knock sensors(both recently went bad), and the like.
Hope it's something simple for you.

Sent from my G3121 using Tapatalk

 

[Greasyshaft]

Don't know the engine in your car but I had a Mini before and there was a intercooler leak which sounded like what you're getting. I was misdiagnosed multiple times before they found it.

 

[Greasyshaft]

Obv get the injectors tested for flow also

 

[Jdd212]

Had similar thing with my a6 c5 2.7t avant quattro tip 2001, turned out to be two bad injectors and am still tracing down pcv leaks.
Have thought about getting some Chinese replacement injectors, but think it will complicate matters, as they could be bad from new!
Good luck, and check MAF.
Advise going through measuring blocks and checking values of: timing adv., lambdas, knock sensors(both recently went bad), and the like.
Hope it's something simple for you.

Sent from my G3121 using Tapatalk

Thankyou very much for your feedback