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Originally Posted by longassname
mbtoloczko, since you have the get up to log analog data with your wideband software how about logging the maf signal? It's the wire. That'll be a quick and true way to see if the maf is in fact maxing out at 5600 rpms. The max will be 4.8 volts not 5.12. I'm curious to see if the meter goes up to the full 5.12 or not but anything at 4.8 or above will read the same in the software. The table values for 4.8, 4.88, 5.6, & 5.12 are all ffff-it's maxed out mathmatically whether the hardware is maxed out or not.
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Michael, I'm definitely going to log the MAF voltage reading. I have a suspicion that the slight lean-out at WOT peak rpm is due to the MAF maxing out, but some of my data suggests otherwise. The last plot I posted on the 1st page shows the afr at about 1/2 throttle (vs WOT) all the way out to 6500 rpm, and even here the afr leans out a bit near max rpm. So, I wasn't going to say anything about the MAF possibly maxing out until I could get some concrete data. I'm super busy at work right now, so I don't think I'll be able to get the data until mid-June.
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