mrMTB

iTrader: (13)

Reading over this, I'm thinking its the timing chain, too. (I know you said someone checked it out, but it might be worth it for you to give it a visual inspection when you have some time.)

PM me your email address, and I'll send you the appropriate pages from the service manual (too big to attach).

ablaze

iTrader: (1)

hi guys, thanks again for not giving up on my car.

have now updated car back to the stock ECU flash (ie. untuned state, pre-ecutek)
problem's still there
and yes, I have the service manual. (there's a free download available, no purchase required) and have printed out the relevant pages and checked it out already. like I said, the installation looks correct.

there is a possibility the cam sensors went bad I guess. but short of swapping with another X is there a way to test? lemme go read the manual again..

Papi4baby

iTrader: (1)

Have you taken it to the dealer see if they can figure it out?

cantona156

Any updates?

D420mac

iTrader: (1)

bump +1

saytheb

iTrader: (2)

This will sound very stupid and I doubt it's the problem since I'd guess you'd get a CEL, but check your coils and sparks. I had this exact problem on my Audi TT with it bucking and VERY rough idle when stopped. High RPM was fine with no issues, but pushing 2-3grand was vibrating and lurching. Turned out to be a bad coilpack, no issues again. This was on a DSG (Audi's "SST").

Again, far fetched but MUCH cheaper with similar response from vehicle.

ev0lution9

iTrader: (3)

this really sounds like something to do with your spark plugs or the coil pack is definitely a possibility

Webman

This! One of the wires could have been damaged throughout the ordeal, and you don't even see it.

cantbanme357

coils

Conor

I hate to say it, but your dealer might be able to help. The MEDIC system they use shows a lot of live data and a savvy tech might be able to figure it out.

cantona156

For coil pack problems, no CEL?