O2 sensor disable?

honda crazzy · Post by **honda crazzy** » Thu Aug 21, 2008 11:45 pm

i have a full race exhaust with no cat and want to know if i should disable o2 sensor or wait till it throws a error. by disabling the o2 sensor , will closed loop work ok. does the o2 sensor only read the gas that's been chemically changed after passing thru the cat, and therefore only checks to see if the cat is working correctly or not?
if that's all the o2 sensor does then it should be ok to disable it.

dc5 itr, k20a top, k24a3 sub., jrsc@9psi, kpro

Post by **Spunkster** » Fri Aug 22, 2008 9:57 am

Closed loop cannot operate with the O2 disabled. You must have a properly functioning primary O2 sensor to run closed loop.

honda crazzy · Post by **honda crazzy** » Mon Aug 25, 2008 1:13 am

WHICH SENSOR IS USED FOR THE CLOSED LOOP PERIOD?
O2 SENSOR OR THE WIDEBAND LAMBDA SENSOR?

Post by **Spunkster** » Mon Aug 25, 2008 10:46 am

The oem primary sensor is a wideband.

Panta83 · Post by **Panta83** » Mon Aug 25, 2008 2:33 pm

Can't we use a R300 bosch sensor as primary O2 ?

Post by **Hondata** » Mon Aug 25, 2008 3:22 pm

A wideband sensor must be matched to the controlling electronics. Thus only the Honda wideband sensor can be used with the wideband controller in the Honda ECU.

froshtyv · Post by **froshtyv** » Mon Oct 06, 2008 6:04 am

Would this be the reason im getting an error code withe the k20a2 civic type r tuned map,

I run a decat/mani fold,

I get an error code saying 02 voltage high??

Post by **Hondata** » Mon Oct 06, 2008 8:53 am

Please post a datalog and your calibration.

froshtyv · Post by **froshtyv** » Mon Oct 06, 2008 2:20 pm

Hondata wrote:Please post a datalog and your calibration.

Might sound stupid,

But for all my searching on this forum i cant find a step by step guide on how to do the above?

Only new to the hondata ecu..

Post by **Spunkster** » Mon Oct 06, 2008 3:27 pm

At the top is says FAQ

http://www.hondata.com/forum/faq.php

froshtyv · Post by **froshtyv** » Tue Oct 07, 2008 5:44 am

Spunkster wrote:At the top is says FAQ

http://www.hondata.com/forum/faq.php

I know how to add a file,

But im not 100% sure how to record a datalog,

I know there is a record button but anytime i record and save it, then upload it again ont okmanager i dont know how to play it back etc???

And what exactly is the best speed rev gear etc... to record to know if its running best??

Post by **Spunkster** » Tue Oct 07, 2008 11:36 am

To view a datalog recording, go tot he graph window and you simply grad the line back and forth. You can position your windows so you can see them all at the same time and see exactly what is happening.