MAF AFR Error histogram

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Mar 30, 2007 | 11:23 AM

My90Iroc

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MAF AFR Error histogram

I need some help setting up my histogram for the MAF AFR Error in HP Tuners. I want to tune my maf but I need to log some accurate percentages of error so I can make useful changes to the maf table.
What readings do I need for the x and y axis of the histogram to acheive this?

Thank you.

Brian

Mar 30, 2007 | 11:31 AM

foff667

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Just logging maf in hz, commanded afr & actual WB afr will populate that histogram.

Mar 30, 2007 | 12:06 PM

My90Iroc

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Quote:

Originally Posted by foff667

Just logging maf in hz, commanded afr & actual WB afr will populate that histogram.

Please bear with me, I'm a little slow. In the histogram I'm using the "MAF Airflow vs. Output Frequency" table for the X axis which lays the histogram out to mimic the actual maf frequency table. I can't figure out what I need for the Plot Value or Y Axis. More help is appreciated.

Brian

Mar 30, 2007 | 12:09 PM

ZL1Killa

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do it the easy way. make PE mode come in sooner, and set PE mode richer... the car got within .1 of the desired AFR in PE mode on first tune

forget messin with the MAF values

Mar 30, 2007 | 12:19 PM

My90Iroc

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Quote:

Originally Posted by ZL1Killa

do it the easy way. make PE mode come in sooner, and set PE mode richer... the car got within .1 of the desired AFR in PE mode on first tune

forget messin with the MAF values

The MAF seems to bring back some of the driveability lost to the cam and I'm looking to possibly setup a dry kit. I upgraded to an 85mm maf and ported it so that's where the need to recalibrate the maf comes from. Plus you need a maf for the sake of OBD2 inspection.