sharktuner NBO2 plot question
10-20-2015, 12:41 PM
#1
sharktuner NBO2 plot question
Started tuning the new SC setup and all was going well. Car started, idled nice, etc., etc. Got a pretty nice fuel map (slightly rich) so I wanted to check O2 adjust before going for an emission test. AS you can see, when I active the simulated NBo2 sensor it started adjusting +1-11 on run 2 and 3. Run 4 seemed to be better at -6 to plus 3. I tried the "real" NBO2 sensor located in the opposite passenger side exhaust and it acted just like Run 2 and 3. The Wideband O2 sensor and just been recalibrated. Any ideas?
p.s. sorry for using an attachment. couldn't figure out how to post the plots directly to this page.
p.s. sorry for using an attachment. couldn't figure out how to post the plots directly to this page.
10-20-2015, 03:28 PM
#2
Disregard run 4. At the very end of run 3 I got rear ended and run 4 started on its own and only lasted a few seconds. Guess I wasn't as calm as I thought. Car drives ok, no injuries.
10-21-2015, 06:10 PM
#4
Hi John,
I ground like the last LC-1 diagram I got from you so I think the answer is yes. I installed toggle switches to both the Innovate simulated NB and the stock NB. Both are mounted permanently since I have two mounting bungs.
I ground like the last LC-1 diagram I got from you so I think the answer is yes. I installed toggle switches to both the Innovate simulated NB and the stock NB. Both are mounted permanently since I have two mounting bungs.
10-22-2015, 04:42 PM
#7
Rennlist Member
That arrangement does allow either of the NBO2 feeds you have available to be connected to the LH but I have some comments.
1) Connect your additional existing NBO2 ground to the 2nd (from top) connection of the 5 way connector block, at present it gets its ground via the LH which I prefer not to use.
2) I see no facility for you to short the LH NBO2 input to ground which is essential before you start to Sharktune. A switch between the 3rd and 5th connector block pins would achieve that. (counting from top of diagram) Tuning would obviously be done with your other two switches "off" and the additional switch "on".
3) Just to make sure, Sharktune with "O2 adaptation" switched off.
Hope this helps !
1) Connect your additional existing NBO2 ground to the 2nd (from top) connection of the 5 way connector block, at present it gets its ground via the LH which I prefer not to use.
2) I see no facility for you to short the LH NBO2 input to ground which is essential before you start to Sharktune. A switch between the 3rd and 5th connector block pins would achieve that. (counting from top of diagram) Tuning would obviously be done with your other two switches "off" and the additional switch "on".
3) Just to make sure, Sharktune with "O2 adaptation" switched off.
Hope this helps !
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10-22-2015, 09:57 PM
#8
John,
I did this:
If I leave the "additional" switch on the nbo2 sensor starts to adjust. If all 3 switches are off no adjust is showing. For this circuit to "short" wouldn't the NB switch need to be on also?
Again, thanks for your help.
I did this:
A switch between the 3rd and 5th connector block pins would achieve that. (counting from top of diagram) Tuning would obviously be done with your other two switches "off" and the additional switch "on".
Again, thanks for your help.
10-23-2015, 06:24 AM
#9
Rennlist Member
You're not trying to short out the NBO2 signal from either sensor. They both need to be disconnected with switches open and then the aim is to short the NBO2 line that goes to the LH ECU.
This makes the LH recognise no sensor, and this defaults the fuelling to mid range of the O2 loop range.
This makes the LH recognise no sensor, and this defaults the fuelling to mid range of the O2 loop range.