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Originally Posted by Partial Stall
I'm curious as to what a "normal" timing advance should be like. I've been trying to collect data of different types of gas around my area for the best bang. While at WOT my timing advance goes down to about 10 or so.
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That's probably at an area that is prone to knocking.
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But for some reason torque says the lowest it's ever gotten is -11.0.
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That sounds like timing during a cold start to warm up the catalytic converter. Retarding the spark timing is normal--combustion occurs later, so the exhaust temperature heats up and lights off the converter. Usually a direct injected engine will go around -10, or sometimes even more retarded than that. A port injected engine will retard less than that during cold start, unless it has a swirl or tumble control valve.
Basically, when tuning for cold start emissions you want to retard ignition as much as you can without causing misfire.
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Anyone know what the deal is with timing advance in this car?
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What you've described so far would be considered normal.
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Also anyone noticing lean conditions when your foot is OFF the accelator after an acceleration?
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That's just fuel cut on deceleration.
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I notice my AFR goes to like 20 for a bit, or until I put the foot on the gas again. (it always stats between 13-14.5 every other time)
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If it didn't go lean on tip-out, under normal circumstances wouldn't it be wasting fuel?