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Megasquirt My secondary injectors are working AWESOME! They're pulling a 32,033,333 Duty Cycle!

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Old 05-25-10, 09:38 AM
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My secondary injectors are working AWESOME! They're pulling a 32,033,333 Duty Cycle!

Thanks to the efforts of you fine people (especially you Ken & Aaron!), I've gotten the car on the road, and even running reasonably well. I'm trying to get all of the quirks worked out before I start hitting the dyno. I've been creeping up towards redline with a keen eye on the AFRs, and while looking through the logs I noticed something curious with the duty cycles when my secondary injectors come online.

Any ideas what would cause this?

Thanks!
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Old 05-25-10, 08:10 PM
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its that duty cycle 2 i think its a bug on megatune if im remenber right
Old 05-25-10, 08:38 PM
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What's the secondary pulse-width?

Ken
Old 05-25-10, 09:06 PM
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Good question, Ken.... I have no idea where to find that. I thought that the only PWM control was in the "basic settings > Engine Constants 1"?
Old 05-26-10, 06:56 AM
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It's one of the recorded fields in your log. Load the log back up and enable a trace for PW2 (I think, or something similar).
Old 05-26-10, 08:21 AM
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Oooooohhh.. Whoops.. I was thinking of a setting!

At that exact point in the log, the PW and PW2 are both 6.2.
Old 05-27-10, 11:34 AM
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Sounds like the tuning software is just miscalculating duty then. That's not something the MS calculates.

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Old 05-27-10, 12:16 PM
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Alright, that's what I was hoping to hear.

Thanks Ken and elturbonitroso!
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