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Join Date: Dec 1969
Location: Silly-Con Valley
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Yes, the CSV should be in the high-pressure fuel loop, just like the injectors. IIRC, in a 1.7 the CSV has two fuel connections on it, so it basically goes in between the left fuel rail and the fuel pressure regulator. (The 2.0 CSV has only one fuel fitting, and it gets connected to a port in the middle of the left-side fuel rail.)

That said, the CSV is not the most critical of components. It should only ever open while the starter is cranking, and even then only when it is "cold enough" (below 40F or below freezing, depending on which source you believe or possibly which version you have).

The car should run fine without it, but may be a little harder to start when it is very cold out.

--DD
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Old 01-09-2018, 11:15 AM
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