The problem with closed loop

[Reiko]

Sry, My English is not good...

I have this problem if you drive at a steady cruise A / F goes up and down. Open loop is when I use all the normal.

The engine is a turbo B18C6
Precision sc61
RC 750cc
8.5:1
Hondata S300, Innovate WideBand LC-1 XD-16
WideBand input EGRL D12

[Reiko]

if anyone can help?

CLOSED LOOP when driving A/F is ok, but if you ride Open Loop A/F goes down to 13.6-16.1
I use the original O2 sensor and the WideBand

[Spunkster]

This looks pretty normal, the datalog freezes after about 2 minutes 50 seconds

[Reiko]

Why driving is a closed loop A/F 14.7 normal but open loop A/F 13.6-16.1 up and down.
I'll make a new datalog which is to better understand.

[Spunkster]

Has it been tuned on the dyno?

[Reiko]

Maximum power is set to dyno but crusie is set by driving on the street

[Spunkster]

If you feel there is a probelm withteh part throttle tuning then take it back to the tuner that tuned it for you.