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Having a little problem tracking down a BCC here in Japan...because I don't know what the hell they call it and when I try to explain it to anyone, they have no idea. Here's the question...is a US spec BCC (greddy part # 15510006 or something) compatible with a J-spec ECU? I can find anything else I need except this, which I kinda need to do anything else. Hook a brotha up!!!


Edit: Had to add e-mail notification.
 

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Supra OG
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I don't believe you want to use a BCC on a J-Spec car.... Don't those use the turbo pressure signal instead of the MAF to actually measure air for fuel output purposes? If so, a BCC could cause you to go lean & blow your motor.

Andi
 
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Andi,

how can BCC make car run lean? care to shine some light on this subject since I'm having some lean issue?

Jonas
 

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Super Moderator!!ON PATROL ALL OVER!!
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mabe the HKS Fuel Cut Defenser might help you instead!
 

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Supra OG
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On a J-Spec motor, a BCC or an FCD would cause you to go lean. Why? Because the motor USES the turbo pressure signal to decide how much fuel to put in.... if you put a cap on this signal (BCC) or reduce it by a constant percentace (FCD), either way you will cause it to go lean.

On a US-Spec motor, we have a mass air sensor so the TPS is only used for sequential stuff as well as switching the fuel pump to 12v... so a BCC is fine on a US car, as long as it's installed right..... ;)

Andi
 
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sounds good, thanx. I did the 12V mode so now it shouldnt be an issue. gonna test the car out tonight and see how EGT goes..
 
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