Just had the PPP fitted on my MY03 WRX yesterday.
Ive noticed that when the revs are quite high in either 4th or 5th I seem to get sort "pulsing sensation" in the delivery of power.
Is this normal?
Could the e.c.u still be learning or should I go back to the dealer?
Or is the car being starved of air?
Definitely feels like something is limiting the power!

 

Yep my STI sometimes does it...
I honestly think its to do with Atmospherics and possibly petrol!
Some days it flys around 8k next it feels steppy..."is that a word" Anyhow it was muggy and wet today and it felt a bit off it...
Reaon I think this is whe I had a bike it felt very similar, and was very iffy as to the temp\humidity..

hope this helps
Dazza

 

Sti8 ppp

I have the same problem i think you will find that the boost tapers off very early.

Its an Ecu issue to me ?

R.B

 

i get the same thing on my sti 7 ppp, sometimes, it was in the to the dealer this month, they found nothing wrong though
same as dazza, sometimes it flies round the clock, sometimes seems to stutter around the 6-6500 rpm
mark

 

Will this sort it out does anyone know



Apexi AVCR Boost Controller



[Edited by R.B - 1/22/2004 7:24:27 PM]

 

ok, cheers guys.
Didn't want to start thinking I'd spent all that money and they had messed it up!

 

I had my stiv7 seriviced at my local dealer bout 3-4 months ago and when it came back it WAS a different car........... still cant believe how much quicker it is on mine the pick up is about 3000 rpm then 4000 very strong boost until 6000 then it kicks AGAIN and 6000- rev limit is incredibly quick dunno what happend or its just now run in but hell.......... it flies

hawk

 

Try super unleaded fuel or optimax (if not already), or a bottle of octane booster

Tony

 

I have seen a few Deltadash outputs of STi7s including PPPs which show the knock correction rapidly increasing and decreasing (pulsing) at 5500-6500 rpm. I wonder if it is this causing the pulsing effect. It can be cured with an Ecutek remap. However, I thought that the STi8PPP and WRX03PPP had Ecutek remaps now and therefore the mapping would be better than on the old piggy back PPPs.

Alan