Check enine light comes on under hard acceleration after remap
21 October 2007, 02:14 PM
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Check enine light comes on under hard acceleration after remap
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?
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?
21 October 2007, 02:28 PM
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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.
21 October 2007, 03:01 PM
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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.
, its not like im having a go at the bloke! Just looking for advice.
.
21 October 2007, 09:51 PM
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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.
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.
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