Dear all
I have removed my turbo kit form my FRS + Ecu +imo ecu
And I install it to my friend FRS
I remove both ecu because it has ecuTek tune ..

My call ID was
ZA1JB01C
And I run the turbo car with no issue..
Now my issue
I have install the second car ecu + imo ecu to my car .
Call ID at this ecu :
ZA1JB01G
I have only install Cold air intake
And OFT STAGE 1 TUNE
but the issue now
When RPM hits 4k I hear something like knoking at driver side
It's start around 3900k - 4100k
Then gone
Only happens while driving ..
At stop and revs all r good
Any idea
Or could be the tune issue
Can I use other CID ??
Thnx