good luck cuz i have a eu too. hopefully i wont run into these problems ><

 

I think i'm spelling it right or atleast I hope so...
the air to fule ratio? right?
and the reason i asked coz then he can know if he is reading rich or lean..

 

ok here is what i thing...
as every 1 said its not a big thing it all has to do with tuning...
how ever the dyno tuning is differing from what i have noticed in the Z in general at least me a couple of friends had this happening... and it has to do with the dyno being different than running on street load on engin boost holding and other stuff.. so I recommend that u do some street tuning where u just drive and the tuner will get to look at the AFR gage or his laptop readings and thats where u get the best tuning...and then after that i suggest that u run a full 5th gear to make sure that u have all the readings right I think 5th gear will put enough load on ur car to prove or show any bugs in there and I wish u all the best of luck..

 

We had a simliar issue with an EU tuned car. The EU is very funny at times, especially as it relates to the crank position signal. I can almost guarantee, that if you switch to the UTEC, or the VPRO, the issue will be completley solved. Since you are running a buit engine at higher boost, I would prefer the FCON, but the UTEC can work as well.

 

I would ditch the EU and go with at least a UTEC.

 

Sam highly recoomended the VPRO and I'd love to go that route but the question is...is it worth it and WILL it solve my problem completely? What I don't understand is how it 'changed' from running perfect to running like crap half the time.

To the response about street and dyno tuning : Sam dyno tunes it and then street tunes it afterwards to make sure everything is fine. He mentioned that there is a small rich spot in the graph that he tried correcting but also mentioned that this spot should not be enough to cause the car to do this. I was really hoping this would be the last of fixing the car but it looks like I might have to start saving for the VPRO. Sam was telling me that he doesn't like trying other things unless he knows what the exact problem is and I agree. If I were to spend 3200 on the VPRO to have the same problem I'd never forgive myself.

Another suggestion he gave me was to tune the car for 1 psi setting as oppose to the low/high boost settings I have now ( 10 and 15 psi) to get better cell resolution.

Anymore suggestions would be appreciated!

Thanks,

-Anthony