turbo stumble only on hard acceleration

[dr13]

Alright guys looking for some good advice, recently, my beloved a4 has devoloped stumble or hesitation when the turbo kicks in,but it only does it when I step on the gas hard. Last night it happened and check engine light flashed twice, then went out. The car has 100,000 on it it, I'd really like to fix this my self.Any advice would be appreciated.

[Seerlah]

You have a misfire issue.

What year is your car?
When was the last time you changed your spark plugs?

[dr13]

You have a misfire issue.

What year is your car?
When was the last time you changed your spark plugs?

2004, Plugs were done less than six months with NGK bk6eix's

[Seerlah]

MisfireS are usually cause by these issues:

-plugs (make sure they are gapped correctly)
-ignition coil (#1 cuprit)
-dirty/faulty MAF
-primay 02 sensor needs replacement
-faulty or clogged injector

There are other factors, but check these first. I would start with ignition coil first, because those are the most comMon. I actUally just got done replacing 2 of them 1-2 weeks ago because if misfires.

[gofast222]

I would check the coils first my tt was acting up last wk an it ended up being a bad maf. I just unplugged it an drove the car. Good luck.

[ECS Tuning-Audi]

Have that code scanned for the check engine light. It should be able to pin point which cylinder(s) is misfiring. Start with the spark plug and work up. Next would be the boot connector - inspect for white/grayish burn marks which indicate there is a crack in the boot and its arching off the walls in the plug well. Finally would be the coil pack.

If you get through that and its still not fixed report back and we'll give you the next thing or two you should look into.

Let me know if you have any questions.

Jason

[EDT51]

I had this same issue. I had a small oil leak on the inner valve cover gasket. Had oil in #1 & #2 spark plug wells. Plugs got wet, kicked a CEL. Easy fix. Took me and a buddy about an hour start to finish. Good Luck.

[waldo1324]

I had this same issue. I had a small oil leak on the inner valve cover gasket. Had oil in #1 & #2 spark plug wells. Plugs got wet, kicked a CEL. Easy fix. Took me and a buddy about an hour start to finish. Good Luck.

i have this right now