new to S300 and got problems!

[touge tom]

hi all...

iv'e placed my S300 in the usdm p28 ecu(pre prepped for S300) and up loaded a 2001 type r calibration.
but the cel light stays on.
motor idles fine but @ a 11.1:-12.5:1 AFR.
is it necessary to have part no# GC98401158 connected to the S300 data log pins? and if so where does the wire go?

all help is appreciated in advance!

from Tom in sydney australia.

[Lazysk8r2]

use the s300 to read what code its throwing. Inside smanager there is a error code button that will tell you when your connected.

[Spunkster]

That harness does not have to be connected. YOu need to read the error code and that will help you determine what to do next.

[touge tom]

all sorted guys. i had to turn off the ELD,knock and alternator control for the p28.