Had the following fitted to my then standard 95wrx wagon about 6 weeks ago:

TD04 hybrid turbo
Ninja 2 fully decated exhaust
Walbro 255 fuel pump
4 new coil packs
Blitz S spec electronic boost controller
Apexi power fc ecu and hand commander
440cc sti injectors
Mapped by Andy Forrest runnin 1.2 bar

Car was running great, but I was told I would get good results from fitting a bigger intercooler and induction kit. So I fitted an sti5 tmic fitted and a Sard induction kit then got it remaped again by andy about a week ago.

He upped the boost to 1.3 bar.

The car seems to fly now, very happy with the performance, but I get the check engine light coming on quite a lot under full acceleration. Mainly in 4th and 5th gear. Not ragging the car to bits, just at 4 or 5k revs. The knock on the apex is often around 20 (quite low on early wrx's) yet the check engine light comes on?

My boost controller is set to 71% which gives around 1.31-1.36 bar. I have tried putting it back down 69% which is what andy set it at during the first mapping session and gives around 1.23-1.26 bar and the engine light doesnt come on much, only in 5th gear at around 5k revs. Obviously its faster at 71, but I dont know if I should be worried about this light coming on?

 

I should also mention that I sometimes get a bit of hesatation at low revs. In 4th or 5th gear at 2-2.5k revs it sometimes pulls back, its fine under acceleration, just when cruising. I have replaced a dodgey lamda sensor, and i have checked the MAF, thats working ok.

 

you should be speaking to Andy, not posting on here.

 

Email has already been sent to Andy. Dont see the harm in asking a technical question in a technical section of a subaru forum tho , its not like im having a go at the bloke! Just looking for advice.

 

Agreed .

 

It will most probably be charge temp, Just the way its mapped. Ease of when it flashes. Speak to andy he will explain.

Steve.

 

Hi
Is this not just a case of the CEL coming on when the car boosts to over 1.2 bar, I think this is normal and can be turned off on the APEXI but have no idea how.
Again this is what I think and what happens on my car, so if you do find out how to turn it off let me know.

 

Just noticed this thread and think I've probably answered it via email although SN user names/real names can be misleading !

Andy