Holley Dominator boost control
I would "bench test" it to get your PID settings right. You use the datalogger to see the commanded dome pressure vs actual, then adjust your PID settings accordingly.
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From: Armstrong BC
Okay perfect I'll grab a little compressor to try out the different settings to get out close to what I'm looking for
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From: Armstrong BC
Dome is configured as custom pressure in the I/O and pinned to J2-A1. Solenoids are pinned fill J2-B6 vent J2-B8
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From: Armstrong BC
When I check the voltage at the dome sensor pigtail I'm getting like 4.59V. How can that be?? I'm using the 5v pin on the Holley ECU and ground. I've got a transmission pressure sensor on the same pins and it's working as it should
Last edited by 91 Z28; Apr 20, 2023 at 07:32 PM.
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From: Armstrong BC
Yea I know it's not ideal but it's all I had. I've got a couple more on the way 50 and 100 psi. Had to take a break from it all yesterday the frustration was mounting. I'll go over everything again just to cross my tees and dot my eyes.
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From: Armstrong BC
Thread Starter
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From: Armstrong BC
That voltage was with the connector unplugged. In the software it shows 0 psi. Plugged in shows max. I'm just checking the pin out on the connector
It's normal to see a little less on a 5v on a 5v circuit with it unplugged.
I'm going to "guess" and say its a wiring( pinout) issue. It sounds like it's dumping 5v back on the reference circuit which is causing it to show 200psi.
It could be a faulty sensor too.
I'm going to "guess" and say its a wiring( pinout) issue. It sounds like it's dumping 5v back on the reference circuit which is causing it to show 200psi.
It could be a faulty sensor too.
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From: Armstrong BC
I did verify the solenoids work by hooking one side to 12v and the other to ground and they do click over. And on the boost vs speed screen in the software the little red bubble is showing where the dome pressure is supposed to be. New sensor is here Monday or possible Sunday so I guess I'll just run it on spring pressure until then
You just need to slow down here
You are obviously in raw dome control id take it
Add target boost(target dome)to your viewing window
If you never show target boost above zero you won’t have solenoid activity
do you have a master enable, what is your target boost at zero mph(if you are in speed)
screen shots of your boost config pages will allow us to sort you out
You are obviously in raw dome control id take it
Add target boost(target dome)to your viewing window
If you never show target boost above zero you won’t have solenoid activity
do you have a master enable, what is your target boost at zero mph(if you are in speed)
screen shots of your boost config pages will allow us to sort you out
Thread Starter
Joined: Oct 2016
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From: Armstrong BC
You just need to slow down here
You are obviously in raw dome control id take it
Add target boost(target dome)to your viewing window
If you never show target boost above zero you won’t have solenoid activity
do you have a master enable, what is your target boost at zero mph(if you are in speed)
screen shots of your boost config pages will allow us to sort you out
You are obviously in raw dome control id take it
Add target boost(target dome)to your viewing window
If you never show target boost above zero you won’t have solenoid activity
do you have a master enable, what is your target boost at zero mph(if you are in speed)
screen shots of your boost config pages will allow us to sort you out
Any help is greatly appreciated. I'll post up some shots of the software setup
Thought I posted earlier but I guess not
turn the TPS modulation off when you want to test the system.
te target boost and noid activity will be zero unless at zero percent throttle
or hold you throttle wide open or atleast above the modulation setpoint
turn the TPS modulation off when you want to test the system.
te target boost and noid activity will be zero unless at zero percent throttle
or hold you throttle wide open or atleast above the modulation setpoint
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From: Armstrong BC
Alrighty I'll try it and see what happens. Is it a good idea to have it turned off all the time?? Or just have it on and adjust the TPS percentage accordingly?? Do any of my other settings look okay or anything you could recommend?? Thanks.
Last edited by 91 Z28; Apr 23, 2023 at 06:49 PM.
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From: Florida
i really really doubt its the sensor thats bad.
as was said above, add the target dome pressure to whatever dash or data viewer you are using, if it stays at zero then its a software setting. the tps modulation in this case.
as was said above, add the target dome pressure to whatever dash or data viewer you are using, if it stays at zero then its a software setting. the tps modulation in this case.
Thread Starter
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From: Armstrong BC
Okay so I took the dome sensor out and had it tested at a local shop and it was reading way off of what it should. No biggie, it was replaced. I updated the software/firmware to build 300. Turned TPS modulation down to 1% and target dome reads exactly what it should now. Used the output test feature and solenoids checked out.
I haven't had a chance to get it out yet as the rain rolled right in but it seems like everything is working as it should. Once the rain stops I'll get it out and take some logs. Thank you guys for all the help it was greatly appreciated
I haven't had a chance to get it out yet as the rain rolled right in but it seems like everything is working as it should. Once the rain stops I'll get it out and take some logs. Thank you guys for all the help it was greatly appreciated