Hi

Ive a 2002 jdm subaru impreza gx sport bugeye

Its has a fault with engine hunting for revs

Ive replaced Maf Sensor (New) no improvement

Ive just replaced Idle Valve no improvement and ive replace Throttle sensor

Im a bit lost now Dont realy want to go to Subaru stealer and get ripped of My nearest is Chandlers Grantham

Could be down to Bad Plugs or faulty Coil pack how would i check?????

It Revs up to 1400 ish back down to 0 then back up again

Thanks Bella xxx

 

Coolant temp sensor