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Old 05-15-2008, 05:49 PM   #1
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Default Initial AFR Target tables very off?

Just finished wiring my wideband to my mspnp, and configuring the ms to use the wideband. I turned on the A/F target table for VE 1, since this seems like a good thing to exploit since I do have the wideband.
When I pulled up the target table, the values in the cells begin at 1.47 volts down near 30 kpa and rise to 1.2 volts all the way up at 200 kpa.
1.47 volts is 12.80:1 A/F according to the tables that came with my wideband (0-5v AEM UEGO) and 1.2 volts is a bit under 12.5:1
This seems quite un-ideal. Are the values that it plugs in when you first turn on the target table subject to a lot of change?
Down by 30 kpa (idle) wouldn't I want to target ~14.7:1 (2.34v)?
And up by 100 kpa maybe 12.5:1 (1.25v)
And probably ~12.0:1 (1.0v) above that

Just want to ask before I go and drastically change all the cells in the table

Thanks
-Ryan
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Old 05-15-2008, 06:35 PM   #2
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Old 05-15-2008, 06:46 PM   #3
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Thanks brain, that looks a lot more like I would think it should look. Once I figure out why my wideband's gauge is reading completely differently than how my megasquirt is reading the wideband signal, (other thread) I'll switch my target table over to something very similar to yours there.
-Ryan
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