vacuum gauge

Discussion in 'General Motoring' started by Lee3333, Aug 22, 2004.

  1. Lee3333

    Lee3333 Guest

    Can I install a vacuum gauge in my 1993 Saturn SL2? Which vacuum line can
    I plug into?
     
    Lee3333, Aug 22, 2004
    #1
  2. Lee3333

    James1549 Guest

    Can I install a vacuum gauge in my 1993 Saturn SL2? Which vacuum line can
    I would "Tee" the vacuum line on the incoming side of EGR solenoid. James
     
    James1549, Aug 22, 2004
    #2
  3. Lee3333

    Oppie Guest

    Why do you want the gauge? just for diagnostic or a measure of fuel economy?

    Used to be they sold vacuum gauges that gave a relative measurement of fuel
    economy... Basically how heavy your foot was on the gas pedal. This may have
    worked for carbureted engines without any ECM. 'Modern' engines have all
    sorts of crazy control algorithms for spark timing and fuel injection
    profiles. Makes the use of a vacuum gauge rather confusing if not useless
    [afik]. If you are just testing, do whatever you have to as if you were
    setting the ignition timing (I forget on the SL2 what plug you have to
    pull). This sets a base ignition timing and you can get some good readings
    from your vacuum.

    Oppie

    _________________
    | Can I install a vacuum gauge in my 1993 Saturn SL2? Which vacuum line can
    | I plug into?
    |
     
    Oppie, Aug 23, 2004
    #3
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