Quote:
Originally Posted by Blindedlegacy
Well if you remember when I first got this car and joined this web site
I posted pics of 2 connectors I didn't no. one was the knock sensor and the other was never figured out. Based on the color of the wires and placement of the vsv on diagrams, that connector goes to that vsv. I don't know exactly how it works yet but the ecu hadn't had a reading from it since I owned it
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I'm sorry, I don't remember... For a low traffic site there's enough to push it all out of my mind after a couple days.
The ECU doesn't "read" anything from the VSV. It doesn't even check load to ensure it's in place. There will be no code in its absence or if it's defective. If it isn't present it needs to be replaced. It isn't a common failure point but it is something which should be tested periodically as well... Fueling is the one thing that can destroy an engine in seconds.
Search the MKIII section for vacuum diagrams to see how it's supposed to be plumbed into the system. There are three nipples, one goes to the FPR, one to the manifold for vacuum and the third just has a small filter on it. You may find the vacuum diagrams in the FAQ section (if you find the vacuum line thread and it's not in the FAQ section let me know and I'll move it there).