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Thread: Ignition and power by cylinder

  1. #1
    Advanced Tuner passingpower's Avatar
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    Aug 2008
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    Grand Rapids, Michigan
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    Ignition and power by cylinder

    Maybe this has already been brought up. Maybe it’s already in the works… Hope so.
    Would it be possible to add to the logs based on cam & crank position data and timing, when TDC and power stroke, by cylinder, occur as well as when each coil pack is energized including dwell? Shown graphically, we’d be able to work out if one or more cylinders are experiencing detonation/pre-ignition. Would help a LOT with diagnostics.
    Check before you consider tuning;
    Is the MIL on? ANY leaks-vacuum, fluid or exhaust? Clogged filters? Old O2 or dirty MAF sensors? Dirty injectors, PCV or IAC passage? Correct the condition. Change the plugs & oil while you're at it. They need it anyway. Particular system giving you fits? Visually examine the related wiring first.

  2. #2
    the cam and crank position data changes too fast for the scan rate.
    I count sheep in hex...

  3. #3
    Advanced Tuner passingpower's Avatar
    Join Date
    Aug 2008
    Location
    Grand Rapids, Michigan
    Posts
    301
    Drat!

    TYVM for getting back.
    Check before you consider tuning;
    Is the MIL on? ANY leaks-vacuum, fluid or exhaust? Clogged filters? Old O2 or dirty MAF sensors? Dirty injectors, PCV or IAC passage? Correct the condition. Change the plugs & oil while you're at it. They need it anyway. Particular system giving you fits? Visually examine the related wiring first.