Can some one help

[email protected]

Sergeant
Platinum Vendor
Jan 23, 2017
460
371
25
If WGDC is at 0% then both sides should be 12v. Only when WGDC goes over 0 should voltage on one side drop. And at 100% one side should drop to 0v.
 
  • Informative
Reactions: doublespaces

[email protected]

Sergeant
Platinum Vendor
Jan 23, 2017
460
371
25
At 75% WGDC then you should see around 9v between both solenoid wires. The factory side will be 12v and the JB4 side 3v.

I learned long ago trying to help people diagnose electrical issues with their single turbo solenoid setups is a loosing cause. You need a good mechanic on site to diagnose and fix if something has been shorted, melted, fuse blown, etc, in the factory harness.
 

Bmwfixerguy1

Lieutenant
Jun 5, 2017
873
288
0
Ride
07 335i MT
At 75% WGDC then you should see around 9v between both solenoid wires. The factory side will be 12v and the JB4 side 3v.

I learned long ago trying to help people diagnose electrical issues with their single turbo solenoid setups is a loosing cause. You need a good mechanic on site to diagnose and fix if something has been shorted, melted, fuse blown, etc, in the factory harness.
I second what Terry said.. Its not always cut and dry.. You need someone that is good to tackle the job for you if you don't feel that you can.
 

Chris98m3

New Member
May 15, 2017
4
0
0
Ride
335i,wrx
At 75% WGDC then you should see around 9v between both solenoid wires. The factory side will be 12v and the JB4 side 3v.

I learned long ago trying to help people diagnose electrical issues with their single turbo solenoid setups is a loosing cause. You need a good mechanic on site to diagnose and fix if something has been shorted, melted, fuse blown, etc, in the factory harness.
I checked all the fuses. No Melted wires. Think I could of shorted out the jb4