Open, closed loop problem? narrowband O2 problem?

[beat]

Hi guys,

Ive recently rebuilt my motor. I found out that the car is running weird under a constant throttle.

Lets say Im cruising at 3500rpm in 5th gear in a constant throttle. i would feel that the power of the car is kinda on and off. Kinda feels like im on and off the throttle, but my leg is constantly on the throttle.

I have a wideband gauge and the AFR jumps around from 13-16 when that happens.

I tried to run in open loop and now it seems to run fine.

What could the problem be?

Ive attached my calibration.

Engine specs:
JDM B18c
cp 11:1 pistons
manley rods
supertech valvetrain
LHT cooled JRSC
725cc ID injectors
walboro 255 pump
stock FPR

[beat]

Also,

What is the disable O2 heater function? Does it just disable the narrow band O2?

I have an AEM UEGO wideband, is it possible to wire that up and replace the OEM narrowband?

[Spunkster]

You need to post a datalog as well showing the problem.

You can run closed loop from a wideband signal: http://www.hondata.com/help/smanager/cl ... losed+loop

[beat]

What would the datalog show?
I don't have the wideband hooked up to the ecu now, it's just hooked up to the gauge.

I also noticed a big discrepancy between the readings of the wideband and the OEM narrowband O2
The OEM O2 constantly reads around 10-12. Even when the wideband is reading 14-16.

Would it be a problem with the O2? Since the car runs so normal when I put it into open loop.

[Spunkster]

You cannot get an accurate AF reading from a stock narrowband sensor.

[beat]

I understand that the narrowband is no where as accurate as the wideband, but then a stock car runs fine on it. What could be the problem causing my car to run weird under closed loop? It ran fine once I put it in open loop.

[B18glaw]

You need to post a datalog as well showing the problem.

You can run closed loop from a wideband signal: http://www.hondata.com/help/smanager/cl ... losed+loop

what version of s300 is this link for... mine does not show the option for narrowband or to use wideband signal in closed loop parameters