Overfuelling?

[Bjorn]

Hi all, I've recently had a new actuator fitted and since then although its running the same boost as before (regulated by AVCR) the car feels a little flat . Originally the avcr was mapped to 1.1bar (and it felt great), I reduced the boost to 1.0 bar which seemed to be okay, but since the new actuator running 1.0 bar it seems to have changed.

So the other day I was on the motorway and decided to flat out accelerate from 4k to 7k rpm in 4th gear - during this the car blipped/hesitated twice - could this be overfuelling?

Also starting to get a few more pops from the exhuast recently.

Any ideas anyone?

Cheers

[lloyd@jrd]

Sounds like overfuelling to me,but not sure why it would do if only the actuator has been changed :???:

[Bjorn]

thanks Lloyd - if I had the SAFC and AVCR setup on the rollers at the same time, and then I reduced the boost I assume the SAFC still be fuelling with the original boost in mind (as was setup on the rollers)

It was set up at 1.1 bar and I reduced it to 1.0 bar

[lloyd@jrd]

That will be the problem mate,with the SAFC being setup in conjunction with the AVCR,when the boost was reduced the fueling was still turned up,i would either suggest turning the boost back up again or adjusting the fuelling,any probs,give me a shout

[Bjorn]

ah top man! thanks!

[lloyd@jrd]

No problem buddy