Boost Controller OFF -> Boost Spikes like hell - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

katbak · 02-23-2005, 09:25 PM

I bought the car used, very nice car
Redtop, lots of mods.
It has a greddy profec b spec II boost controller. I made a post before about how I can set it, etc... But thats not the problem.
When I turn the boost controller off my boost spikes like crazy, still, basically as long as i floor the pedal the higher it will go, yes... VERY high... 25lbs ?

...

So I'm asking what are the possible causes of this.
A boost leak...
Hoses not correctly connected...
Where can I find the valve unit under the hood?
Anything else I can visual check?

02-23-2005, 09:25 PM	#1
katbak Leaky Injector Join Date: Jan 2005 Location: Ok Age: 45 Posts: 106 Trader Rating: (0) Feedback Score: 0 reviews	Boost Controller OFF -> Boost Spikes like hell I bought the car used, very nice car Redtop, lots of mods. It has a greddy profec b spec II boost controller. I made a post before about how I can set it, etc... But thats not the problem. When I turn the boost controller off my boost spikes like crazy, still, basically as long as i floor the pedal the higher it will go, yes... VERY high... 25lbs ?... So I'm asking what are the possible causes of this. A boost leak... Hoses not correctly connected... Where can I find the valve unit under the hood? Anything else I can visual check?