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Vacuum Tap for Boost/Fuel Economy Gauge 200 1992

posted by  someone claiming to be Dave S. on  Wed May 16 13:15 CST 2001 [RELATED]



I'm going to add a fuel economy gauge to my '92 240, but I'm not sure where to hook up the vacuum line.

Can I do this under the dash, or would it be more accurate if I run it thru the firewall and use a tap closer to the manifold?

In either case, is there an easily accessible vacuum tap available?







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    Re: Vacuum Tap for Boost/Fuel Economy Gauge 200 1992

    posted by  someone claiming to be rhaire on  Wed May 16 13:24 CST 2001 [RELATED]

    Dave-

    T into the thin line off the intake manifold on the engine side of the throttle body. That will work great, but you have to run a line through the firewall like the turbos do.







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      Re: Vacuum Tap for Boost/Fuel Economy Gauge 200 1992

      posted by  someone claiming to be Richard Langis on  Thu May 17 05:52 CST 2001 [RELATED]

      Agreed, closer to the engine is better. I bought a turbo cluster for my 242 DL a while ago and teed the boost gauge from the vacuum lines too close to the heater system - gauge worked intermittantly depending on what heat position options I had selected (feet, window, recirc).






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