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Yea Christians unit is cool, but for the ammount I will use it, 3 switches, a relay and a pressure gauge makes more sense to me... it is also nice to manually pressurize the system to look for leaks...

You would have to use a short pigtail hose between the PCU pressure port and the gauge sender. The way they oriented the port the bottom cover partly surrounds the sensor and The 0-100 psi piezeo sensors just barely fit… you could easily fit a mechanical gauge sensor line there. Isspro is a...

I need to re-do the wiring diagram. It is pretty simple, 3switches, some diodes, a relay and a pressure gauge. I was looking at making the latch circuit with a SCR vis a relay. I drew out a diagram for a enclosure that bolted where the original controller went, and connected re-using the...

It’s on my youtube channel…

You wont see any drop on the primary or secondary gauges. The compressor feeds the dryer, the dryer feeds the wet tank, the wet tank feeds the primary and secondary tanks thru check valves. The wet tank also feeds CTIS thru the protection valve. The only way you will see a pressure drop on...

Yea for regular CTIS applying air from an alternate source is the way to go to find leaks instead of waiting on the processor to Briefly pressurize it. Another way is to disconnect the CTIS connector and jumper the 28V pin to the control solenoid and briefly jumper the 28V to the inflate...

First off, Are you sure it is not filling? the tires consume a huge ammount of air. Once you energize the control solenoid(closes its valve) and energize the supply solenoid(opens that valve) to let in air, the wet tank on mine drains to the protection valve cutoff point(85 PSI) in about 3...

No real update, I unfortunately have a lot of projects and I am building a house. Am typing this while taking a break from struggling to put a windshield in the beast right now:) Yes you can use a toggle, if you leave control on, the system stays pressurized after checking the...

Thanks. I will take some pics inside when I make a little more ergonomic case. This was an inexpensive proof of concept and the gauge is a little hard to read setting in the drivers seat. Not much inside, 3 switches, 6 wires a cannon plug and gauge. Been thinking about it a bit and I might...

Oops!

It is possible to overinflate with ANY manual system. Might even be possible with an automated system unless the software limited the fill time of a system chasing a false pressure transducer reading... not sure what if any the original CTIS used for safety beyond requiring 2 solenoid circuits...

Ok, so my CTIS ECU is a brick with 5 solid lights and if I spend too much more on this project my wife will probably bury me in it:) That being said, I am also a bit of a control freak so I am converting to manual CTIS. I have looked at the valve and regulator method but decided to go about it...