Okay > This is what we found > The VSV is not a problem.
IJ, when Kyle came to my place, he had already switched the check valve as he was told, but there was no vacum. He had it right the first time.
Between the two terminals, it gets 12 volts.
When the heater temperature is changed, it remains close to 12 volts. I think this voltage should change accordingly to allow the vsv to open/close the vacum supply?
Anyone can confirm this? My car is down or else I would check.
When I plugged in a known good vsv, it clicked, then right away started allowing vacum through, but nothing changed with temp. change
The VSV also started getting warm .
This led us to the conclusion that there was a short somewhere that caused this circuit to have constant voltage, hence keeping the vsv open at all times.
Yellow wire has close to 12 volts and this is what it is supposed to have.It is part of the gauge cluster circuit ( 7.5 amps)
The Black/yellow wire comes from the A/C Air Mix Control servo motor > into the IHI plug ( pin # 1) then on to the engine Harness ( IH1 - Pin # 1) to the VSV plug.
My conlcusion is that there is a short between the servo and the IH1 plug.
Why??? Becaue the Dash harness looks like it was burnt at some time and point. I still saw few exposed wires which I taped up. There was other dash harness that does not have the factory casing at all and just hangin loose, and there are splice connectors on the wires....
Yes..Kyle is right....his harness is JACKED UP!!!!