Front mount inter-cooler

[larry]

I have installed a front mount inter-cooler on my99 turbo 2000 and a cone filter. The car is mafless however upon starting its idling and not running properly and putting out

white smoke through the exhaust.

It is hesitant to rev. What could this potentially be down to?

Could it be the dumpy valve?

Could it be that it needs a map again?

Could it be anything else?

[Tidgy]

it will need mapping for the front mount, should still idle ok so you may have nocked a sensor or coilpack adn thats cuasing the duff running

[David Wilkinson]

Tidgy makes a good point 

my 96 wrx idled bad due to a wire being chewed through on the maf sensor.

my legacy needed the idle control valve cleaned. It’s a start at least 

[larry]

The car is Maffless so I initially ruled that out but to be on the safe side plugged it in encase it wasn't.

I found the problem it was the Map sensor, it was disconnected when I was installing the front mount and I did not put it back in as it

slid down and away from sight. It is now plugged in and idling fine which is good. I have not yet driven it as im bleeding the brakes but

shall see if it needs a map.