Hi.. I own a 1998 Uk V4 standard impreza apart from a decat exhaust... Im getting the red engine light on after aprox 15mins of driving from a cold engine.. sometimes goes out again at speed but always back on at slow speeds... ive read the codes and its saying everythings wrong!! never an engine light on for the 1st 15 mins though....could it be the decat? anyone else had this probelm?... regards.

 

Red light is your oil light ,, I would start there

 

i have a decat on my classic and never had an issue

 

mate have a look at the oil, probably needs topping up mine dose that when its siting low

 

Oops I meant orange light.. .sorry.

 

Hi im a newbie to this, i have just purchased my first suburu UK300 bugeye, treated it to a Full DEcat system including turbo up and the same after only doing 100 miles not giving it beans but my 'Orange engine light' stays on?? i have no reader. car runs fine??

 

Your car needs a map to turn it off, will always happen when you decat your car.

 

If it's the lack of sensor in the up-pipe then you can bridge the connectino with a resistor to get rid of the CEL. There's a thread here on it

 

Reset the ecu and then drive it and read the codes it might be that you have some old ones stored.