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View Full Version : tubo prob...need help

240walker
10-17-2006, 09:19 AM
i have a freshly built ka24de with ross pistons, crower rods, arp studs, & cometic head gasket. i bought the iap stage 2 turbo kit installed it. car will run but will not idle. i have the walbro fp, jwt ecu, and the 300zx maf all hooked up. greddy profec II boost controller is hooked up. i can fire the engine up but as soon as i touch the throttle just the slightest bit the engine cuts off. i need some serious help. i've been fighting this for about a month now and not being able to drive my car is making me nuts. thanks for any help or suggestions.
the head
10-17-2006, 11:22 AM
is your BOV atmosphered? if so reroute into intake tract behind MAF...check for boost leaks (put soapy water in windex bottle and spray all connections then look for bubbles)
240walker
10-17-2006, 11:33 AM
blow off valve is recirculated like you say. i am making the boost leak tester right now. any other ideas?
the head
10-17-2006, 11:47 AM
that and unhooked vacuum lines are the three best bets on the problem
the head
10-17-2006, 11:55 AM
IAC unit may be broken or not hooked up.
scottyb
10-17-2006, 02:37 PM
Did you install an adjustable FPR? You'll need this with the Walbro pump, otherwise it will run too rich. Plus, if you are just touching the throttle and then it dies, then it doesn't sound like a turbo problem becuase the turbo won't be making any boost then.
punxva
10-17-2006, 03:06 PM
actually u dont need a new fpr unless your stock one isnt working properlly... trust me ive got a walbro on my NA ka atm, and it runs tip top...
the head
10-18-2006, 08:23 AM
Did you install an adjustable FPR? You'll need this with the Walbro pump, otherwise it will run too rich. Plus, if you are just touching the throttle and then it dies, then it doesn't sound like a turbo problem becuase the turbo won't be making any boost then.

wether there is pressure or vacuum on the system it can still leak