I seems there have been a few on TT Net but there is not an official FAQ or tech articles. After finding a slightly wet gas line on my fuel rail tonight I did a little more poking around and found a cylinder not firing.
I have more troubleshooting to do, hopefully its an electrical problem and not valves or head issues. I ran out of time tonight to look at it further.
I thought that to be a possibility so I swsapped packs around with another and the spark plug also but the problem stayed with Cyl#5. Its down to an injector or mechanical problem, head, valve etc… One positive sign on that note is that there is no sign of smoke.
Oh ya its a TT, I never run lower than 92octane and usually go down to the one station in Calgary that sells 94.
Dead Injector in cyl#5… bummer but new NISMO 555’s on order from Z1 with everything, gasket and O-rings $950USD, plus another $200 for an ASHSpec eprom. I wanted the Zemulator but couldn’t ring any more money out of my credit card! I will have 2 other EPROMS for sale ones a clone of a JWT and the other is the one I am currently running from SGP Racing.
I also had them swap out the fuel pump while it was at the shop, I don’t think it had totally failed but it sure was making some crazy noises once and a while.
Hopefully, I sure would like to get a new intercooler before getting up to those boost levels. That was next on my list until this. Do you have an aftermarket drive shaft and flywheel (light Weight )?
I suppose the driveshaft could be done anytime, but I ain’t doing the flywheel until either: a) next clutch replacement, b) engine’s coming out anyway. So the flywheel is one upgrade I’ll have to live without for now.