Car kicks back
 

I can't really think of any better words at the moment to discribe whats happening but when I hit around 4-5k RPM's my car starts to kick like I was tapping the gas. I have a 98 A4 1.8T Manual. I am running a KO4 on a wetterauer chip if that helps shed some light. Anyway it was funky and I would appriciate any help figuring out what it might be thanks.

RE: Car kicks back
 

Its probably a boost leak my car was doing the same thing and I did a boost leak check and it was a broken hose I fixed it now its perfect now i can go over 4 k with no problems also do you fell like the boost drops by it self when you are driven because my car was doing that.

RE: Car kicks back
 

have you had the codes checked? Just because you don't have a CEL doesn't mean there aren't hidden codes in your ECU.