1969-1984 [Subscribe to Daily Digest] |
The frequency valve AKA modulator valve is the workhouse behind the oxygen sensing circuit in CIS. It is what actually influences the fuel mix and is connected to primary circuit pressure (fuel pump pressure) on both sides.
David
79 900 turbo
posted by 205.188.116...
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
![]() |
![]() |
![]() |
![]() |
![]() |