jackevans211

hi hav just bought a 08 STI and there seems to be a flat spot from about 2000-2500rpm when accelerating slowly, u notice it more in Intelligent mode. the car i stock, dose any one els have the same problem or know what it is?

mickp

iTrader: (1)

Not heard of that one. If it's standard better running it into your dealer so they can plug it into there reader.

jackevans211

yer might have to but they want to charge me £80 an hour just to do a chek on the car.
also notest it idles a bit rough siting at 500rpm is that normal???????

ZEN Performance

The idle is not sitting at 500rpm. The tacho reads, Zero, then 500rpm is the next bar. So if it's roughly between zero and 1000 the idle is about 750rpm which is about right as the actual idle speed is 700rpm.

The "flat spot" is just a function of how the throttle is controlled, the boost will start to come in at 2500rpm so you're probably feeling some slight lag even that low down. The throttle is controlled differently in S and S# mode hence why it is less of a problem.

Basically this is how the car is from stock and while I suspect a proper second opinion from an expert (who can drive and/or datalog the car) would be prudent I think it's a case of don't worry about it, get an exhaust & remap, or get another car.

dynamix

iTrader: (3)

As Paul said ^

I Mode just dulls down the throttle pedal even more so that lots of movement in the pedal doesnt equate to lots of movement in the actual throttle. This would be doubling the effect of the flat spot.

Where are you based ?

jackevans211

in surrey, kingswood.

u can also notice it dus not seem smooth when holding it at about 2500rpm doing 40mph to 50mph, have been checking the oil level not using any but oil is quite black had oil changed at 8000mile now car is at 11000??

dynamix

iTrader: (3)

Can you explain what you mean by 'not smooth' ?

I presume you are using Vpower or Tesco 99 fuel ?