rich in one gear, lean in another, same fuel bins

For discussing MicroSquirt (TM) configuration and tuning of fuel parameters (including idle valves, etc.).
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gvanhorn
MegaSquirt Newbie
Posts: 8
Joined: Sat Sep 04, 2010 4:46 pm

rich in one gear, lean in another, same fuel bins

Post by gvanhorn »

Been working at this for a week, hard pull from 2k rpm in 2nd, and motor is rich (10:1), shift to 3ed and motor go's lean, all this is in the same fuel map bins. msq attached, log will be in next post. injectors are 65lbs/hr low Z (2.5 ohms).
CurrentTune.msq
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gvanhorn
MegaSquirt Newbie
Posts: 8
Joined: Sat Sep 04, 2010 4:46 pm

Re: rich in one gear, lean in another, same fuel bins

Post by gvanhorn »

here is log file
run6.msl
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Matt Cramer
Super Squirter
Posts: 910
Joined: Sat Jul 03, 2004 11:35 am

Re: rich in one gear, lean in another, same fuel bins

Post by Matt Cramer »

You have a very sharp drop-off in fueling from 145 to 150 kPa. This is going to make fueling at full boost very touchy as a tiny change in MAP has a huge change in fuel. I'd try smoothing out these rows. Or better yet, rescale your kPa bins so they're not packed so close together under full boost.
Matt Cramer at DIY Autotune
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