How to override Boost & Fuel Cut

4GTuner

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ENGINR

Wannabe Racer
Joined
Nov 6, 2005
Messages
5,042
Location
Melbourne
Guys,

Am running a VR4 motor in my CC Coupe, and am using the standard ECU which came from the front cut. This was an auto with the TD04 turbo on it. I've upgraded to a TD05-14B and am running an Apexi AVC-R boost controller with an EVO1 fuel pump.

However I can't get the thing to boost over 10psi and it seems to hit either fuel or boost cut (car sometimes jolts/cuts out when I boot it HARD) and I don't know if it's the factory ECU or the boost controller.

Anybody got any suggestions as to how I can try and tackle this problem, as I don't know.
 
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