Could I be more confused about A/F

K-Series Programmable ECU installation questions / support issues
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uncledan
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Joined: Mon Jul 30, 2007 10:21 am
Location: cleveland, ohio

Could I be more confused about A/F

Post by uncledan »

My car is an 02 RSX-S. Mods are Kpro, Hondata IMG, Injen CAI, PRC intake manifold, stock exhaust. I am using the CAI calibration. I am trying to tune columns 8, 9, 10 to a lambda of 13.5. I live at about 1100 feet, atmospheric pressure is usually around 97, 98 kPa. I went to Options-Settings- Lambda Overlay and changed the medium and high load values to 13.5. Downloaded the cal (open loop) and took the car out to datalog.
Afterwards I looked at the datalags. One of the runs was a WOT in 3rd gear. If I look at the fuel tables, the lambda for columns 8, 9, and 10 is 13.5, and the correction table says I am running a little rich. If I look at fuel command sensor in the sensors table it is asking for an A/F of 12.49 at WOT.

I don't get it. What am I missing? Shouldn't the fuel command be for 13.5? Have I missed a value adjustment somewhere in parameters or options? Should I ignore fuel command and just change the fuel values to achieve a 13.5?

What do I have to do to get fuel command to be 13.5?

Help, please!

uncledan
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Spunkster
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Location: Hondata

Post by Spunkster »

Fuel command cannot be changed. You just tune your tables for the proper AF.
uncledan
Posts: 42
Joined: Mon Jul 30, 2007 10:21 am
Location: cleveland, ohio

Post by uncledan »

Okay, thanks for the answer. So then If columns 8,9,and 10 are set for a lambda of 13.5, will the correction values in the fuel tables be for 13.5? And is that the correct A/F given where I live and the mods I have?

I much appreciate your help.


uncledan
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Post by Spunkster »

Those are starting points and recomendations. You really need to tune this on the dyno and talk to yoru tuner for what AF they recommend.
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