16586 - injector cylinder two

[1781cc]

Hi peeps,

B6 Audi S4, been chasing a misfire for about 2 month now, at first I had intermittent random cylinder misfires that was traced back to the plaug and go LPG ecu, basically once it errored on Lpg it switched back to petrol in limp mode, cleared the code in vag-com then it was fine. For a while...

So new ecu, reducer and tune, voilà all ok. Or so I thought... Now I get this:

VAG-COM Version: Release 409.1-US


Chassis Type: 8E - Audi A4 B6
Scan: 01,02,03,08,09,15,16,17,26,36,37,45,46,55,56,63,76
 
-------------------------------------------------------------------------------
Address 01: Engine
   Controller: 8E0 910 560 
   Component: 4.2L V8/5V      G   0030
   Coding: 0011711
   Shop #: WSC 63351
1 Fault Found:
16586 - Injector: Cylinder 2 (N31): Circuit Malfunction
            P0202 - 004 - No Signal/Communication - Intermittent
Readiness: 0010 1001


Any ideas? So far I have spent a lot of money trying to fix this and with Xmas putting me under pressure, I need to get it fixed.

Any help really, truly apreciated!

[1781cc]

Faulty ecu!! God, now I have a third one in... This is a piggyback ecu error for LPG invade anyone wants to know, it's basically telling the petrol ecu it's out of sync when sequentially switching injectors over