No power to Fuel Shutoff Solenoid

S

SweitzerWorks

Member
Joined
Nov 6, 2018
Location
Southern Vermont
TDI
2003 Jetta Wagon 5 spd
Another one for the 88 4runner ALH swap.

With the ignition on (power source for ECM) i've got no power to the FSS, pretty sure I've got everything else sorted but clearly I don't.

Thoughts?

Thanks!
-Jackson
 
S

SweitzerWorks

Member
Joined
Nov 6, 2018
Location
Southern Vermont
TDI
2003 Jetta Wagon 5 spd
Also, I should mention that I'm communicating with the ECM via VCDS. The only fault codes I'm getting are for missing messages from ABS, airbag, and instrument cluster.
 
AndyBees

AndyBees

Top Post Dawg
Joined
May 27, 2003
Location
Southeast Kentucky
TDI
Silver 2003 Jetta TDI, Silver 2000 Jetta TDI (sold), '84 Vanagon with '02 ALH engine
The power to the Fuel Shut-off solenoid drops drastically right after the ignition is turned ON. In fact, if you do not start the engine the voltage will drop to zero...... proved it on my swap and confirmed it on my 2000 Jetta ... photos below from my Photo Gallery! (back in Oct, 2012 when I was trying to solve the hard start issue with the ALH in my Vanagon... grounding was the issue)

Below, at ignition turn ON...



Below, a few seconds after turning ON the ignition...



Below, a few more seconds after turning ON the ignition ....



And, below a few more seconds after turning ON the ignition...



Hope this helps....
 
S

SweitzerWorks

Member
Joined
Nov 6, 2018
Location
Southern Vermont
TDI
2003 Jetta Wagon 5 spd
AndyBees said:
The power to the Fuel Shut-off solenoid drops drastically right after the ignition is turned ON. In fact, if you do not start the engine the voltage will drop to zero...... proved it on my swap and confirmed it on my 2000 Jetta ... photos below from my Photo Gallery! (back in Oct, 2012 when I was trying to solve the hard start issue with the ALH in my Vanagon... grounding was the issue)

Below, at ignition turn ON...



Below, a few seconds after turning ON the ignition...



Below, a few more seconds after turning ON the ignition ....



And, below a few more seconds after turning ON the ignition...



Hope this helps....
Click to expand...
Yes! Thank you so much for this gem. Turns out I was just too slow on the multimeter!

First start right here:
https://www.youtube.com/watch?v=9q596yyWdLk
 
You must log in or register to reply here.
Top