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Default Meth solenoid not flowing - 04-04-2018, 07:39 AM

Good Morning

After Changing the Meth solenoid 2 days ago, Now Meth is not flowing ( My logs shows meth flow at 100%), but i just noticed when i try to purge ( the pump is working and meth is only flowing till the solenoid after the solenoid there is no flow why is that ??!


And i read in the Install Guide the Red wire should be connected to the Fuse Box , but in my setup it's connected to the cars Red Battery Socket in the engine , is that okay ??


I attached some pictures of the install here. Any help would be much appreciated
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2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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Default 04-04-2018, 08:40 AM

Check for 12v with a digital multimeter at the green wire that goes to the solenoid, and your solenoid ground. Also get rid of those twist nuts. They are for solid AC wiring, they break stranded wires. Get yourself butt connectors, posi-taps, quick-disconnects, or solder the wires.

12v is 12v doesn't matter how you get at it, as long as your fused between the source and the FSB. Check and double check your grounds, use factory ground points where you can. Clean the grounds first with a wire brush, or emery cloth.


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syclonedriver syclonedriver is offline
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Default 04-04-2018, 08:41 AM

The solenoid is wired wrong. One wire connects to the green wire on the FSB and the other wire should be connected to ground, not the pump power wire.
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Default 04-04-2018, 09:31 AM

Quote:
Originally Posted by syclonedriver
The solenoid is wired wrong. One wire connects to the green wire on the FSB and the other wire should be connected to ground, not the pump power wire.
Yes, its connected now to the pump power wire , i will check if this solves the problem . Thank you


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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Default 04-04-2018, 09:39 AM

Quote:
Originally Posted by syclonedriver
The solenoid is wired wrong. One wire connects to the green wire on the FSB and the other wire should be connected to ground, not the pump power wire.
I just tested moving the wire to ground. It still did not work.
Are you sure about this ? Because before changing the solenoid it was working just fine like this


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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Default 04-04-2018, 09:42 AM

Quote:
Originally Posted by zipphreak
Check for 12v with a digital multimeter at the green wire that goes to the solenoid, and your solenoid ground. Also get rid of those twist nuts. They are for solid AC wiring, they break stranded wires. Get yourself butt connectors, posi-taps, quick-disconnects, or solder the wires.

12v is 12v doesn't matter how you get at it, as long as your fused between the source and the FSB. Check and double check your grounds, use factory ground points where you can. Clean the grounds first with a wire brush, or emery cloth.
There are 2 wires from the silinoid which is ground and which is power.

And can you explain more on how to install the wire's. I didnt really get you..


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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Default 04-04-2018, 09:48 AM

BTW in this thread : http://www.n54tech.com/forums/showthread.php?t=39720

Terry Wrote this ... one to the Green wire & second cable to pump red wire.

Why is that ??


Quote:
Originally Posted by Terry @ BMS
The solenoid is 12v, and does not connect to ground. It connects to the pump RED wire.


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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Default 04-04-2018, 09:49 AM

BTW in this thread : http://www.n54tech.com/forums/showthread.php?t=39720

Terry Wrote this ... one to the Green wire & second cable to pump red wire.

Why is that ??


Quote:
Originally Posted by Terry @ BMS
The solenoid is 12v, and does not connect to ground. It connects to the pump RED wire.


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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zipphreak zipphreak is offline
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Default 04-04-2018, 12:07 PM

http://www.burgertuning.com/instruct...it_install.pdf


Solenoid has two wires.. One wire goes to FSB green wire, one wire goes to chassis ground.


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syclonedriver syclonedriver is offline
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Default 04-04-2018, 01:07 PM

"V2 FSB: Both solenoid wires are interchangeable. Attach one to the FSB green
connection using spare wire as needed to extend it. Attach the other solenoid wire to a
suitable ground location by the solenoid."

The instruction above were taken straight for the BMS instruction.

You can test the solenoid by connecting it to ground and the positive pump wire but that is not how it is supposed to be connected.

Maybe the FSB is damaged.
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syclonedriver syclonedriver is offline
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Default 04-04-2018, 01:08 PM

Why did you change the solenoid?
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Default 04-04-2018, 01:11 PM

Quote:
Originally Posted by syclonedriver
Why did you change the solenoid?
from the logs, the meth flow wasn't good. so i bought new solenoid and nozzles. just to make sure that the flow will be good. But now i regret this move

is there a way i can check if the solenoid is working and not faulty ??


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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syclonedriver syclonedriver is offline
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Default 04-04-2018, 01:14 PM

"Original FSB: Both solenoid wires are interchangeable. Attach one to the FSB green
connection using spare wire as needed to extend it. Attach the other solenoid wire to the
RED wire going to the WMI pump from step4."

The above is taken strait from the BMS instruction, but it is for the original V1 version of the FSB and in your pictures you have V2.
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syclonedriver syclonedriver is offline
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Default 04-04-2018, 01:16 PM

To test the solenoid hook it to 12v and ground it should click and have flow.
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syclonedriver syclonedriver is offline
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Default 04-04-2018, 01:18 PM

What did the logs show for meth flow?
How many nozzles and size?
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Default 04-04-2018, 01:18 PM

Quote:
Originally Posted by syclonedriver
"Original FSB: Both solenoid wires are interchangeable. Attach one to the FSB green
connection using spare wire as needed to extend it. Attach the other solenoid wire to the
RED wire going to the WMI pump from step4."

The above is taken strait from the BMS instruction, but it is for the original V1 version of the FSB and in your pictures you have V2.
Ahaa then,
FSB V1 - solenoid wire goes to pump red wire
FSB V2 - Solenoid wire goes to ground

Did i get this right ?


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Default 04-04-2018, 01:19 PM

Quote:
Originally Posted by syclonedriver
What did the logs show for meth flow?
How many nozzles and size?
Dual CM7
My IAT'S wasn't dropping as usual - and fuel trims were maxing out.

That's what made me think that meth isn't flowing well


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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Default 04-04-2018, 01:31 PM

After a little more thought on this I realized you have the solenoid and the pump outputs connected together through the solenoid. The FSB could have been supplying power to both the solenoid and the pump through the solenoid output, the pump output would also have been supplying power to the pump. This would cause the logs to show lower than normal flow. It would also likely overload the FSB solenoid output.
I haven't actually tested this put it makes sense to me.
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syclonedriver syclonedriver is offline
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Default 04-04-2018, 01:32 PM

Quote:
Originally Posted by WaqasRiyami
Ahaa then,
FSB V1 - solenoid wire goes to pump red wire
FSB V2 - Solenoid wire goes to ground

Did i get this right ?
Correct
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syclonedriver syclonedriver is offline
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Default 04-04-2018, 01:35 PM

Quote:
Originally Posted by WaqasRiyami
Dual CM7
My IAT'S wasn't dropping as usual - and fuel trims were maxing out.

That's what made me think that meth isn't flowing well
Sound like a flow problem to me too.
What was the meth flow in the logs just before you change the solenoid?
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Default 04-04-2018, 01:36 PM

Quote:
Originally Posted by syclonedriver
After a little more thought on this I realized you have the solenoid and the pump outputs connected together through the solenoid. The FSB could have been supplying power to both the solenoid and the pump through the solenoid output, the pump output would also have been supplying power to the pump. This would cause the logs to show lower than normal flow. It would also likely overload the FSB solenoid output.
I haven't actually tested this put it makes sense to me.
Can you please tell me what to change exactly in my setup.
To make it like normal and better working as per the installation gauid ??


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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Default 04-04-2018, 01:46 PM

Quote:
Originally Posted by syclonedriver
Sound like a flow problem to me too.
What was the meth flow in the logs just before you change the solenoid?
All logs 100% Meth Flow - but the results shows that something wrong


2011 F10 535i N55 PWG 8AT | "Pureboost.de Tune" + MHD Flasher | xHP Stage 3 transmission Tune | N20 3.5bar TMAP Sensor | Pure Stage 2 Turbo | GFB DV+ | Fuel-It Stage 2 LPFP | 93 Octane Fuel | BMS Intake | ER 4" CLess D/Pipe | ER 3" Charge-Pipe | Wagner-Tuning Competition Intercooler | Custom Turbo Inlet Pipe | https://i.imgur.com/iR4wm3I.jpg |
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syclonedriver syclonedriver is offline
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Default 04-04-2018, 02:41 PM

1. Test the solenoid and if it test good wire it for V2 of the FSB.
2. Purge test. If the solenoid doesn't operate you may had a damaged FSB.
3. Contact BMS customer support.
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zipphreak zipphreak is offline
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Default 04-04-2018, 04:53 PM

Pull the meth line between the charge pipe and solenoid. Put it into a can or bucket.

Put your hand on the solenoid when you hit purge. Does it click? Do you see fluid coming out ?

If not something is wrong.

The meth @ 100 in the logs does not really tell you are flowing meth. I believe it simply measures current of the pump wire, too much its clogged, too little tanks empty, etc..

The solenoid is simple, simpler than a relay. 12v on one wire, and ground on the other. It doesn't matter what wire. But for V2 FSB as you have been told is green wire to solenoid, and the second solenoid wire is to ground. V1 was reversed.

You will not get your answer reading these posts. You need to get your hands dirty and fix it


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Default 04-04-2018, 05:03 PM

Solenoid needs to be attached to chassis ground and FSB green on the V2 FSB, per the install guide. It's wired incorrectly in your photos.


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