Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Full throttle Electric Supercharger Build Thread

Shinobu's Smile · 09-30-2018, 01:19 PM

So I'm having an issue with my Phantom system. Ive owned it for maybe 2 years along side the procede controller and it has been operating flawlessly since.

With the procede controller, I recently noticed that the supercharger is kicking in at a low throttle percent (10-15%?) but then as I give it more throttle the supercharger stops and recharges as if I released the throttle but didnt (the voltage pops up from a partial draw at 26v back up to 28.4v). There are no errors on the screen at all or any flashing digits.

With the engine off but electrical system set to "on", when I press the accelerator to 10-15%, the supercharger runs for as long as I maintain that position, but then as I increase the throttle, the supercharger stops entirely.

I connected the Procede controller to my computer and loaded the throttle maps and it's as it should be. When I rev the engine, the corresponding box at the appropriate engine RPM and Throttle position are highlighted so I doubt this is the issue.

I reconnected the 2-stage pedal switch, went for a drive and when I hit the partial position, it kicks in, then as I hit the full throttle portion of the switch, the supercharger stops and the voltage swings back up to 28v.

Other Observations:
I tested the dump batteries (in series) while the engine and everything was off and they read a solid 26 volts, so I doubt that's the issue.
I noticed some green corrosion on the center pin of the connector that goes from the procede controller to the phantom controller. I also noticed some minor green corrosion on the connector that goes from the display/on/off switch to the phantom controller. I tried to scrape off as much as I could with a pin and reconnect but symptoms persist. The connection from the controller to the motor itself is perfect. Shiny and tight with no corrosion. I opened up the controller box and I didnt notice any burnt, char, or smoke marks. All the capacitors look fine and the fuse inside appears good.

I have pictures linked below if they are of any help. Does anyone have any idea of what I should check?
https://imgur.com/a/rg3YqHt

Update 1:
Normally the system would sit at 28.4V when idling or cruising. Now I noticed that it sits at 28.8v and when it does a partial draw, it will shoot up to 30v briefly. It never used to do this before. Is this a sign of dying dump batteries or a faulty controller?

Update 2:
Under the direction of @j_Zer0 , I replaced the dump batteries and now it is back to working as it did since day 1. It still puts a smile on my face ever time it kicks in. I really dont know how those "normies" drive this car without anything.

Thanks @j_Zer0

09-30-2018, 01:19 PM	#10671
Shinobu's Smile Member Join Date: Sep 2014 Drives: 2010 Tacoma, 2015 BRZ AT Limited Location: SoFla Posts: 54 Thanks: 47 Thanked 12 Times in 10 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	So I'm having an issue with my Phantom system. Ive owned it for maybe 2 years along side the procede controller and it has been operating flawlessly since. With the procede controller, I recently noticed that the supercharger is kicking in at a low throttle percent (10-15%?) but then as I give it more throttle the supercharger stops and recharges as if I released the throttle but didnt (the voltage pops up from a partial draw at 26v back up to 28.4v). There are no errors on the screen at all or any flashing digits. With the engine off but electrical system set to "on", when I press the accelerator to 10-15%, the supercharger runs for as long as I maintain that position, but then as I increase the throttle, the supercharger stops entirely. I connected the Procede controller to my computer and loaded the throttle maps and it's as it should be. When I rev the engine, the corresponding box at the appropriate engine RPM and Throttle position are highlighted so I doubt this is the issue. I reconnected the 2-stage pedal switch, went for a drive and when I hit the partial position, it kicks in, then as I hit the full throttle portion of the switch, the supercharger stops and the voltage swings back up to 28v. Other Observations: I tested the dump batteries (in series) while the engine and everything was off and they read a solid 26 volts, so I doubt that's the issue. I noticed some green corrosion on the center pin of the connector that goes from the procede controller to the phantom controller. I also noticed some minor green corrosion on the connector that goes from the display/on/off switch to the phantom controller. I tried to scrape off as much as I could with a pin and reconnect but symptoms persist. The connection from the controller to the motor itself is perfect. Shiny and tight with no corrosion. I opened up the controller box and I didnt notice any burnt, char, or smoke marks. All the capacitors look fine and the fuse inside appears good. I have pictures linked below if they are of any help. Does anyone have any idea of what I should check? https://imgur.com/a/rg3YqHt Update 1: Normally the system would sit at 28.4V when idling or cruising. Now I noticed that it sits at 28.8v and when it does a partial draw, it will shoot up to 30v briefly. It never used to do this before. Is this a sign of dying dump batteries or a faulty controller? Update 2: Under the direction of @j_Zer0 , I replaced the dump batteries and now it is back to working as it did since day 1. It still puts a smile on my face ever time it kicks in. I really dont know how those "normies" drive this car without anything. Thanks @j_Zer0 Last edited by Shinobu's Smile; 10-08-2018 at 08:13 AM.