Cylinders 4 & 5 Ignition Circuit Open Intermittent

[GSXeclipsePSI]

SORRY POSTED WRONG - THE CODES ARE NOT INTERMITTENT - OPEN CIRCUIT IS WHAT IT SAYS

17775 - Cylinder 5 Ignition Circuit
P1367 - 35-00 - Open Circuit
17772 - Cylinder 4 Ignition Circuit
P1364 - 35-00 - Open Circuit

Ok, I did the coil swap to push on coils on my 2.7T A6. The coil swap has been fine for last year or so. No misfires codes etc. Custom tuned by Daz off Nefmoto.com.

I got the codes for open circuit on cylinders 4&5 and flashing misfire on cylinders 5 only. Today I went thru my ICM delete wiring and changed from butt connectors and soldered and shrink tubed the wires hoping my problem was there. I have swapped coils around and problem stayed on 4 &5. Feels fine underboost, pulls ok, tuned for w/m 50/50 running straight water so idk if that's the slightly less power.

When I wired the coil plugs/connections I soldered the 2 grounds to the one ground on the 5 wire harness. I know cyl. 4 only has one ground. Should I run a 2,3,5,6 separate ground to valve cover like the 1.8Ts? Or should I just check my wiring on 4 & 5 coils. Just looking for input before I go into the wiring. Not much length to the stock wires to be cutting and redoing. There all soldered and shrink wrapped and taped up. I thought ICM wires since it effects more then one set of coils.

Thanks in advance.

[GSXeclipsePSI]

Also, at idle there is not codes on vcds. Once I revv the engine and check I cyl.5 and if I revv higher or drive a code will show up quickly for 4 & 5. None at idle tho.

**Also a side note, I had my battery go bad last week, one of 6 cells failed, got a new battery. A few days prior I seafoamed the car and also I ran 1.5qts low on oil. I also pumped out and replaced the front and center diff fluids (01V - Tiptronic/AT) Just figured I'd say what else has been a issue or been worked on within past few weeks/month.**

[e30mclow]

Ever figure this out?

I'm having similar issues and wouldn't mind hearing your findings - http://www.audizine.com/forum/showth...2-0T-Coil-Swap