power enrich comand afr diffrence

[gmonde]

I have hooked up my air fuel meter ,the afr on the meter are matching up with the commanded until it I put it in power enrichment ,, the commanded is 12.55 and the actual is 13.5 where should I start ? thanks gmonde
wide open test 2.hpl

[5FDP]

Add fuel, then see if it comes down and matches the commanded.

Not sure on setup or what mode you are tuning in but you will add to the MAF cuvre or the VE/VVE table.

If using the MAF still, from maybe like 6,000hz on up add 5% worth of fuel and smooth the table. See how close you get to the commanded AFR.

[gmonde]

the application is a e38 ecm ,,2009 g8gt

[alsediri85]

I believe you have to calibrate the MAF for the difference you got between what you commend (12.55) and what you got (13.5). You could remove the differences by calibrating the MAF reading on WOT. May be it starting from 7500 hz.
13.5/12.5 =1.075. Just multiply the WOT MAF reading into 1.075 then it will get into 12.5 in wot

[gmonde]

working on the maf .. I did add in the 5% @ 6000hz and smoothed it out ,, I will have to take a few test hits and see , I will post results ,, thanks

[GHuggins]

All you need to do is set up a graph in your scanner plotting air fuel or lambda error vs MAF Hz frequency, then copy from 5 or 6000 hz up and paste special multiply by percent or half percent after it gets close to dial in your MAF... Make sure to keep it smooth by highlighting the changed cells and looking at the line graphical view and smoothing from end to end a couple of times...

[gmonde]

thanks for the info!!!!!! did a few test hits today ,, it was cold and traction was an issue but once it was in the middle of 3rd and hooked up it was pretty close to the commanded ,,can you get me a screen shot of what the graph would look like ,,thanks In advance ,,gmonde
test hit 2 maf change.hpl