Boost suddenly stopped working

[Aichel31]

Suddenly I have no boost, ecu code is 55 all clear, checked air filter, it's good. boost will be just under 0. slow acceleration. Any help would be great before i decide to take ot to the dealer. Thanks. Michael.

[Sgt]

Test for boost leaks
Here is a guide to doing so: http://www.thumper300zx.com/z32/boostle ... _guide.htm

I forget if safety boost with necessarily throw a code, but it won't hurt to make sure the connectors to the coolant temp sensor and the detonation sensor are not corroded and are making good contact. Test those two sensors out too.

[A Paratroopers 300zx]

Could also be that you accidentally popped a hose. Hose clamps come loose from time to time so I would double check all the vacuum connections and air hoses. Some are harder to see than others. If you got a code 55, then it's probably not sensor related. Safety boost throws it down to 7-7.5 PSI I think. Also, don't trust the factory boost gauge if you're still running it.

[CrazedZ32Owner]

Thought safety boost was 3 psi?? im pretty sure the factory boost settings are for 7-7.5 psi.. at least thats what i boosted before i installed my EBC

[Aichel31]

Thanks for the replys, I did find at least one of the leaks from the IAA/IAVC. You can hear it and feel it pissing out air. I've ordered a new one, and i will do a complete leak down test of the intake system. Thanks again.

[A Paratroopers 300zx]

Thought safety boost was 3 psi?? im pretty sure the factory boost settings are for 7-7.5 psi.. at least thats what i boosted before i installed my EBC

Factory boost is 9-9.5 PSI.