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When you first start your motor(2010 F 150 Yamaha) is the ECU in open loop until the motor gets to normal oper. temp. under cold conditions will the ECU let the timing advance further and let the engine run richer than after it reaches normal operating tempature ? If so how much more advance will it have when cold ? Thanks for any help Joe R
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The F150 is always in open loop because there is no oxygen sensor.Stanley Islander 19, 2006 Yamaha F150TLRC. Ottawa, Canada
16' York River, 1986 Yamaha PRO 50. -
Does the ECU allow the motor to run richer with more ti ming before it gets to normal oper temp ?Comment
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Ebgine will run richer when engine is cold and leans out as warms up.Comment
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