SO I JUST INSTALLED K PRO ON MY 2000 S2000, MECHANICALLY EVERYTHING WENT PRETTY SMOOTH. I LOADED THE BASE MAP AND LET IT IDLE FOR A WHILE WITH NO PROBLEMS AND NO CEL. THEN I WENT TO LEAVE WORK AND THE CE LIGHT WENT ON IMMEDIATLY. THE CODE WAS FOR SYSTEM TOO LEAN. THEN I GOT HOME AND LET IT IDLE AND I WATCHED THE DISPLAY AND NOTICED THAT AT IDLE THE STFT STARTED CLIMBING AT A STEADY PACE...THEN I NOTICED THAT THE AF IS GREEN AND NEVER MOVES OFF OF 14.7. I USED THE BASE S2000 MAP AND DOUBLE CHECKED THAT THE SECONDARY O2 SENSOR BOX WAS CHECKED....IM AT A STAND STILL AND VERY CONFUSED..I WAS HOPING SOMEONE HAD A SIMILIAR ISSUE AND COULD CHIME IN THANKS IN ADVANCE

ROB

EDIT: MY CAR IS BONE STOCK MINUS THE COMPUTER...

 

You need a wide band. I think the stock o2 sensor only reads up to 14.7. Go with a plx or innovate wideband. Load the base map again. if not, bring it to a tuner.

 

Closed loop. The RSX ECU will run in closed loop using the S2000 primary oxygen sensor. Due to the RSX ECU normally using a wide band oxygen sensor, in KManager you use select 'Use Secondary Oxygen Sensor for Primary' (don't panic - the ECU is actually running off the S2000 primary oxygen sensor, which has been routed through the RSX ECU as the secondary oxygen sensor). thats off the hondata website

 

You can't read the AFR off of your computer in KPro, as you don't have a wideband sensor. You are still using the stock S2000 narrowband sensor to run the KPro. The only way to see AFR on your computer through KPro is to connect an aftermarket wideband to the ELD lead on the KPro or to order an RSX wideband and perform the RSX wideband modification, which requires creating a wiring harness and reprogramming the KPro. The computer will always show 14.7 as there is no feed for it currently.