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Blitz Sbc Id

wises

By wises,
in General Maintenance

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wises Enthusiast

wises

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Posted

Hi all,

I've got a Blitz SBC ID installed on my R33, everything was working fine, and I mean fine, was doing everything it should.

BUT!! Now something has gone terribadly wrong!

The car seems to have dropped down to standard boost despite what i set the boost to on the controller. I have tried the boost on auto, manual at high boost and low boost, but still the car boosts the same. Also messed around with the gain setting but no real love there, I did notice a VERY slight difference in response when controller was set in manual and boost was set to 100, but boost peaked at 9.6psi.

An interesting thing to note is that when I have the boost set very low ie. 1psi the alarm trigger on the controller does not activate.

Also, I pulled the control box for the unit out (the silver one that you tuck away in the cabin) and checked it over with the multi meter, the box had the needed 12V to the supply and was outputting 12v on the common and what I would guess are the step 1 and step 2 solenoid returns, now when I set the boost to 1 psi and blew with my mouth on the pressure inlet to the unit, there was practically no change in voltage on any pin, cept for a slight dip to 10.5V approx on one of the solenoid feed/returns.

Very confusing stuff, I opened up the silver box and checked out inside, nothing burnt or out of the ordinary.

My next move is to pull the solenoids out of the engine bay and confirm there operation.

Just thought I'd crack this up online and see if anyone has any thoughts or experiences with these units playing like this.

A few other things I've tried are:

Resetting the controller

Unplugging the blitz power meter (also usually connected)

Disconnected the actuator feed from the solenoid block to confirm turbo operation, turbo works fine.

Setting all channels to 1, nothing happened car still boosted as stock

Scramble has been turned off

Well that's about all I can think of for now, any help will be greatly appreciated.

Cheers!! :P

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https://www.sau.com.au/forums/topic/332715-blitz-sbc-id/
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