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Hacking up Honda's ECU
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PostPosted: Wed Mar 05, 2008 10:47 am 
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Joined: Thu Dec 21, 2006 7:24 pm
Posts: 13
Hello, One question, when I drop the gas pedal, the AFR goes very rich at moment (to 9.0) and after it stabilizes well to my table AFR , I use Crome and I have the IACV disabled

Someone knows why?


THanks


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PostPosted: Wed Mar 05, 2008 12:11 pm 
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Joined: Fri Aug 20, 2004 6:33 pm
Posts: 2243
Location: chicago burbs
"drop" the gas pedal as in lifting your foot or press down with your foot? (can be taken either way)

pressing down with your foot is tip-in, pull back the value a little.

lifting you foot was dubbed tip-out a while back. Still not resolved in Crome.
you can help it a little by leaning out the highest two columns above 1500RPM, but it will still be there.


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PostPosted: Thu Mar 06, 2008 3:27 am 
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Joined: Mon Sep 26, 2005 11:52 am
Posts: 2046
Location: Morgan Hill, Ca
tipout is the delay before fuelcut IMHO.

If you have big injectorsthen this is somewhat normal; but it could also be an abnormally high col1 and col2 values.


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PostPosted: Thu Mar 06, 2008 2:39 pm 
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Joined: Wed Nov 22, 2006 12:55 am
Posts: 768
Location: Torrance, Ca
Are you using a wide band O2 sensor when you are getting the AFR readings. If you are using a narrow band then ignore the readings because they are far from accurate.


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PostPosted: Mon Mar 10, 2008 4:13 pm 
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Joined: Thu Dec 21, 2006 7:24 pm
Posts: 13
Im using a LC1 + XD16

Is when I lift & press my foot, lifting is more noticeable

I have 310cc and I tuned the P30 map via adjuster multiplier (CTRL+F) first, and after with ostrich

I will try adding the 13.000rpm file and decreasing fuel in this file


Thanks


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PostPosted: Sat Mar 15, 2008 12:25 am 
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Joined: Thu Oct 06, 2005 8:00 pm
Posts: 245
Location: Tallahassee, Florida
fuel multipliers: throttle tip-in. reduce that number. Since you have bigger injectors than stock you want to decrease the "base" throttle tip in value as it is calibrated for the stock injectors. Stock injector calibrations with bigger injectors = more fuel.


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PostPosted: Tue Apr 01, 2008 8:56 pm 
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Joined: Tue Apr 01, 2008 8:37 pm
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98vtec wrote:
fuel multipliers: throttle tip-in. reduce that number. Since you have bigger injectors than stock you want to decrease the "base" throttle tip in value as it is calibrated for the stock injectors. Stock injector calibrations with bigger injectors = more fuel.


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