View Full Version : Vct tech Question?

08-10-2013, 08:17 PM
Does anyone know of a site that i can check out a break down of VCT on an S14 sr? For example I'm looking for how it works. 5 volt, 12 source. switched with oil pressure or just a solenoid?

08-10-2013, 09:10 PM
Factory S14 SR FSM?

08-10-2013, 10:15 PM
What is fsm?

08-11-2013, 11:02 AM
Factory service manual... 5v energizes the solenoid, which opens the oil passage to the VTC cam gear. VTC range is about 1k rpms to 5.2k rpms.

08-12-2013, 10:34 AM
Thank you. Are you aware does it return after voltage stops to "home" position or does the computer then pull it back?

08-12-2013, 11:24 AM
The solenoid is or is like an electro magnetic plunger. Once voltage stops, it should return to the closed position.