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vwnewton, VW Owner,ASE Master and L1 Advanced
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Experience:  25 years of VW obsession turned into a job, last 15 years as a VW Tech.
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Voltzwagon Jetta: Why will my jetta run good only after I pinch

Customer Question

Why will my jetta run good only after I pinch off a fuel line going to the injectors
Submitted: 6 months ago.
Category: VW
Expert:  Edward replied 6 months ago.
Hello, Eddie here and I will do my best to help. It's likely got low fuel pressure . and when you pinch that line off, it's probably the return line your pinching off, and that raises what is known as dead head pressure from the pump. Has you checked the fuel pressure with a gauge to know whether it's in spec or not?

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