Hi all,
On starting from cold the car fires up as normal but struggles to idle. Feather the throttle a few times and it idles normally.
Start driving the car and it is hesitant until it warms up.
And with hard acceleration it often reaches fuel/boost cut.

Not a pleasant driving experience at the moment.

Car is a 96 STI.

Any ideas gratefully received.

Many thanks,
Jason.

 

CTS?
MAF?

 

I am aware of the MAF, i removed it and cleaned it but no difference.

What and where is the CTS?

How do you test both?

Thanks

 

had similar, changed fuel pump, never had a problem since

 

Coolant temperature sensor.

 

Had problems like this as well but mine was the turbo intake pipe had split where the hose's join on the sides