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    Fuel pressure drops to zero on anything past idle...help!

    Thanks for the help so far! Got a new issue... I have a gen 6 502 with the VST fuel system. I have been chasing a low fuel pressure issue and have since replaced raw water sea pump, mechanical pump, VST pump, and fuel pressure regulator. I've taken care of most issues that were dogging me...
  2. R

    Need help with vent line routing for 502!

    Hey guys, I've been digging into a few issues with a gen 6 502 with a VST type fuel system (low fuel pressure and surging/stalling coming off the throttle). Long story short, I was in the middle of replacing the IAC sensor and discovered some vent tube routing that doesn't make sense to me...
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