I recently had the ECU flashed to the performance mode on my 2003 Audi A4 1.8T. While driving at about 45pmh and i let off the gas, the rpm's drop to 2000, i hit the gas again so i speed up again, the car jerks like its jumping into another gear. i didnt see any codes while using VAG-COM. Is there anyone that is having this problem or has an idea to what the problem could be. 2003
audi A4 1.8T
42,000 miles
GIAC Flashloader Performance & Stock Programs.

 

It sounds like its just the extra power...my car jerked like a mother when I was stage 1+..Then when I went stage 3 I could break peoples necks

 

I was about to say CoilPack but then saw that you Vaged that.

 

I brought the car back to the place i got it flashed and they ran vag-com and there were no codes that were before or after the flash.

 

IMHO, Ive heard sometimes Flashed ECU's do that, thats why it is recommended to like have a break in period for a bout 100 miles (dont rev yourcar to often and dont drive it hard) so Flash gets "in a contact with" your ECU ))
Might be your plugs too, cause now u have more stress on your engine.
Check out here, AMZE had some problems with his ECU whe he got Flashed.
https://www.audiforums.com/m_784397/tm.htm

 

What are some good plugs and where can i get them at??

 

You can get plugs anywhere from Walmart to some Crazy Website ))
Search on forums, you will find some good info.

 

what is the gap on the spark plugs??

 

I think it is 0.28, i've heard that "The nominal range for the 1.8t is .028-.032 but that differs for some plugs and setups."
By the way, ifu search on forums u will find a lot of useful info

 

thanks man