Schocki

What is the resistance of the tank venting valve or how can it be checked otherwise?

toofast928

Tank venting? You mean the the amount of vaccum it takes to open the fuel cap relief valve.
What's the problem.............

John Speake

No, he means the solenoid valve that directs the fuel tank vent to the carbon cannister...

Tony

Im not sure of the value but i can tell you to the "nats ***" where it is powered from these days!

on an 87 s4 atleast...
Pin w-13 on central electric via 2.5 Red/yellow to hard point 4 ... via .75 red/yellow to pin 1 on the connector returning via .75 Brown/yellow to pin LH 27

John Speake

Thanks Tony,
Schocki needs a resistance value for some checking. The vent valve is the one component that I've not checked.

Good luck with your fault finding !