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wb readings during decel

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Old 08-11-2005, 12:20 AM
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Default wb readings during decel

For anyone with a wideband, what kind of readings do you see during deceleration (with throttle closed)? Mine's showing it goes richer - I expected it would be the opposite, don't the injectors stay closed during decel? Is this maybe due to the EGR kicking in? This is in closed loop driving by the way, and engine has stock internals. It usually goes from 14.X cruising to 13.X decel, may get into the 11-12 range.

Just got the LC-1 working recently so not much testing time yet. But this seems pretty consistent.
Old 08-11-2005, 02:52 PM
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At first anyway when the throttle closes you have the same amount of fuel being injected and practically NO air going in. After a long decel though mine goes lean due to the fuel shutdown.




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