lack of top speed

[deano]

Hi,and good evening,im hoping one of you members can help me,or have experianced a similar issue,today i was driving should we say spiritidly and noticed a complete lack of top end performance ,foot flat to the floor and it just wasnt pulling,i seem to remember a fellow member experiencing a similar issue,either posted on here,or the other forum,but im unable to search for the post,
All compressor pipes are in place,any ideas?
cheers dean

 

[conaero]

Sorry not heard that one, but as its a 3200 it could once again come down to TB or PP. Other than that, binding brakes or not giving you full boast would explain it.

Take it on to your works track quickly, what is the top end you are getting ;-)

 

[deano]

Hi Matt,i think the previous post either on here or the other forum described it as hitting a brick wall at 120mph,
brakes are not binding,throttle body and pp seem ok only a slight eratic idle,so would dispel that,though i will check the output of the pp.could be lack of boost as it doesnt seem as aggresive as it used to be ,sticking wastgate ?

 

[conaero]

Oh yes, I do remember this now. Ill try and have a look for it.

 

[deano]

cheers mat,would be much appreciated,it would just save me a little time in diagnosing it,and heading off up the wrong path initially

 

[rs48635]

Have you reset throttle pot?
Obvious I know, but you need to full voltage to get the speed, but might not miss it for accelleration.

 

[Maser Sod]

Could check the MAF?

 

[Fat Arnie]

I had this. Knock sensors.

 

[conaero]

I seem to think it was the knock sensor too. I'll do a bit more digging but I think Arnie is on the money.

 

[deano]

cheers gents,for the info,ill dig a pair out the stores monday and fit them,and ill keep you all posted.Again thank for the help