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The problem with closed loop

Posted: Wed Sep 28, 2011 5:09 am
by 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

Re: The problem with closed loop

Posted: Fri Oct 28, 2011 7:20 am
by 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

Re: The problem with closed loop

Posted: Fri Oct 28, 2011 10:43 am
by Spunkster
This looks pretty normal, the datalog freezes after about 2 minutes 50 seconds

Re: The problem with closed loop

Posted: Fri Oct 28, 2011 12:24 pm
by 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.

Re: The problem with closed loop

Posted: Fri Oct 28, 2011 2:55 pm
by Spunkster
Has it been tuned on the dyno?

Re: The problem with closed loop

Posted: Sun Oct 30, 2011 10:00 am
by Reiko
Maximum power is set to dyno but crusie is set by driving on the street

Re: The problem with closed loop

Posted: Mon Oct 31, 2011 9:21 am
by Spunkster
If you feel there is a probelm withteh part throttle tuning then take it back to the tuner that tuned it for you.