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spectral
Forums Junkie


Location:
Brisbane
Registered:
February 2003
Re: GT4 cutting out Sat, 24 July 2004 14:24 Go to previous messageGo to previous message
you should have listened to Lance at the start of this thread Smile

You don't need to have a boost controller fitted to hit boost cut, it can happen from a fault. Most likely a wastegate that is not opening correctly

Take off the intake piping to the AFM and have a good look at the wastegate actuator linkage, make sure its connected properly. If the linkage seems fine, then it may be a fault with the wastegate actuator itself.

To test the actuator while the turbo is still on the car, you need to disconnect the actuator hose at the turbo housing end and apply source of low pressure air to it. If the rod moves at around 10psi, then the actuator and linkage are fine.

If the problem persists, it could be the wastegate valve itself, which means a turbo disassembly.

The other area which could be faulty is the pressure sensor itself.. make friends with another GT4 owner that lives near you and borrow his turbo pressure sensor and try that... probably and easier first test than the wastegate problem, so try it first.

[Updated on: Sat, 24 July 2004 14:27]

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Read Message   GT4 cutting out - FIXED SledgeFri, 23 July 2004 06:46
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