Over the last few weeks when first starting my Jap STI, the engine doesn't run smoothly below 3500 revs for the first 15mins. After this period it's fine. I would appreciate any ideas.

 

What petrol are you using and do you blip the throttle upon start up ?

 

When was it last serviced??

 

Also agree with what fuel are you using?
Any funny sounds on start up?
which version STI is it?

Tony

 

I'm using super unleaded but have to admit that i've put in normal unleaded a couple of times when unable to find super. Also it was serviced in March. What does blipping the throttle on startup do? I'm not aware that i do this.

 

Do not press on the throttle when you start up!

 

NUL in an STi is a disaster waiting to happen.