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Boost Issue

Tool

By Tool,
in Engines & Forced Induction

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Tool Newbie

Tool

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Posted

Sorry if this has already been asked before, I searched but was unable to find anything on this issue. I have an R32 GT-R running a Power FC and it will only ever reach 7lbs of boost even though it's set to 20lbs, is this possibly due to a 'limp home' mode or something of the sort? There doesn't appear to be any leaks and I've checked through the hand controller and all the settings appear to be the same as they used to be. The knock sensor is registering higher than previously was but nothing overly worrisome. Any thoughts appreciated. Thanks in advance.

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doo doo Proficient

doo doo

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Posted (edited)

What sort of boost controller you're using will be handy to know-( eg. if you have a blitz SBC i-D set to 20 in manual mode it's a percentage, not a psi level) although 7 psi is pretty low?- Have you checked this boost level with a gauge that's know to be accurate?

Edited by doo doo
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Tool Newbie

Tool

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assuming its a power fc boost control kit? is it still turned on in the etc menu? afaik theres no limp mode in the pfc, its pretty basic.

checked the solenoid works?

It's a Greddy E-01 boost manager, adjusted the solenoid and all it did was mess with the idle. It still caps out at 7psi.

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Tool Newbie

Tool

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The power fc wont do that, It will cut the engine if you go over your set boost level (with the boost sensor enabled and connected)

What boost controller are you running? have you got it set right?

Greddy E-01, haven't consciously changed any of the settings since it was tuned and I don't leave the remote plugged in to prevent accidental changes.

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Tool Newbie

Tool

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What sort of boost controller you're using will be handy to know-( eg. if you have a blitz SBC i-D set to 20 in manual mode it's a percentage, not a psi level) although 7 psi is pretty low?- Have you checked this boost level with a gauge that's know to be accurate?

I have an analogue gauge plugged in which appears to reflect the same boost.

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