TylerZ281500
Yukon Ridin High
if your a tooth off in the dist or timing chain then 0 could be funky, gotta play it by ear and driving feel
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I just ordered an OBD usb cable yesterday, I plan on using ALDLwin or something along those lines. What do you use? I have it fully warmed up when I do the timing I drive for about 20 mins or so then do it.Also be really, really sure you're doing this on a fully warmed up engine. There's a default timing curve built into the module; it will advance timing slightly as the engine speed increases, even with the bypass wire disconnected. It's nowhere near as aggressive as the normal timing curve while the wire is connected, but it's there. You want the engine hot so you're at normal idle speed while setting the base timing.
Again if you want to be positive you're set at the sweet spot, borrow a graphing scanner and watch for knock counts and knock retard. If you see very much of any, you have too much advance for your engine. The exact amount will vary based on wear, other factors like EGR performance, quality of fuel, amount of carbon buildup in the combustion chamber, cooling system efficiency, yada yada yada.
Richard