Hondata

I have a big issue that i cant find out...

Ok

I have a JDM D15B and the only thing that it has is a Bottom end build up,
Vitara piston
Fj R Spec Rod
and it has a a stock fuel pump
stock injectors 240
stock fuel pressure regulator
AEM Fuel Rail

Head
Stock Valve Train
Bisi LV. 1.2Cam
Stock Camgear
Uego Wideband
Fuel Perssure Guge

Now the thing is that on the Uego gage the AR reads 10.0 and it stays there now on the s300 display it rads .68 and it dose not move. Now on the Uego it moves when you punch the thruttle

What could be the issue i tried other basic maps and it the same, now on the d16a tune map it changes, the uego reads from 10.0-11.2. could i run that base map. But the s300 software display AF reads the same.

Post your calibration and a datalog. S300 looks like it's set to read in Lambda, you can change it in setting to read Air Fuel Ratio.

ok ill send you my base map,

make sure only your wideband is connected to input D10 ELD.

There are wired on D10
what could it be, all so stock honda ecu are rich at cold idle?

fjartjdm wrote:There are wired on D10
what could it be, all so stock honda ecu are rich at cold idle?

At first start it should be around 12.9 - 13+ then when warm around 14.7.

Did you get s300 to display Air Fuel Ratio?