Thread: high speed(rpm) engine cuts out??? help!!!
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Old 08-14-2009, 11:21 AM   #4
pwpanas
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Quote:
Originally Posted by krahs912 View Post
im useing Apex i AFC Neo Fuel Management i checked fuel pressure today and it does not drop off at high rpm. (fp 50psi) i did find today that the boost goes from 17psi to 10psi when the problem happens so i think i am feeling a power loss. what could cause such a boost drop? it is a instintanious drop and comes right back. its like a switch. i can run 18psi in 1st and 2nd gear no prob. i think it has to do with holding boost for longer periods of time. thanks for any help you can provide.
Does the Apex i AFC Neo Fuel Management unit have a provision to eliminate the fuel-cut in the 2jz-gte oem ecu (i.e. eliminating the need for a GReddy BCC or HKS FCD)?

The boost drop could be caused by a loose or split intercooler hose - it may overlap enough to hold 10psi, but push apart at levels higher than that. Another may be an improperly-functioning BOV.
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