I just redid the entire rear end fuel delivery, including fuel filter, accumulator, new line between the pumps, and new pump backflow valves. Everything hunky dory, but a after a few weeks I got a fuel smell coming from the front.

I discovered the leak: found dampness below the EHA valve by the fuel distributor. I have two questions:

1. Is this coincidence, or did my work in the back restore fuel pressure to a higher level, causing the leak in the front?

and

2. What is the likelihood that it is just the o rings underneath the EHA, and that I don't need to replace the entire valve? Car has about 130,000 miles on it.

Thanks!

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Henry Bofinger
1989 560 SEL (black/black)
2001 Audi TT Roadster (silver/grey)