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JohnJL JohnJL is offline
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Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,742
100 for IDLE means my idle stepper valve bypassing the throttleplate is open. It works like a choke when starting. In closed-loop idling it adjusts continuously to get the engine idling at a given target speed.

I spent another unsucceful day yesterday in 3-6 degree temps and no joy. Adjusted injector opening from 6ms (what the engine uses when idling cold) all the way up to 35ms. I get more and more caughing as fuel increases but still will not catch. The flugs arent fouled, I have a function in the ECU thal allows me to test fire each spark plug and each injector. I get a "caugh" or "boom!" when each plug is fired between starting tries, indicating to me there is both fuel vaporized and that the plug is firing.
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1978 911 3.0 Lichtbau toy "Gretchen"
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Last edited by JohnJL; 04-28-2012 at 04:28 AM..
Old 04-28-2012, 04:25 AM
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