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Thread: SR's Without o2 sensors

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Posts: 11-20 of 22
2010-05-29 06:09:05
#11
hmmmmmm i am running a calum basic ecu with one of alfsentra's tune's on it. winder if i need my o2 sensor also.
2010-05-29 09:31:11
#12
Originally Posted by martin7937

Here in Europe only B13, N14 and P10 were ever using that non o2 SR20.



Nope, only early P10 came without cat and o2 sensor. All N14/B13 has o2 sensor and cat.
2010-05-29 12:10:16
#13
Dude, you don't want to argue with me on that - believe me Just because I told you about non o2 SR20, it doesn't mean I told you everything I know
2010-05-29 12:57:33
#14
non o2 like mine has a screw on the maf you can tune the mixture from there
2010-05-29 14:02:34
#15
I doubt the o2 does anything on my rt. I've been reading up on the widebands and such. Our ancient o2 sensors only monitor for stochiometric. They are only there for cruising and idling. Our cars would blow up if they were running stochiometric at wot. Even factory ecus revert to their base maps at wot.
2010-05-29 14:56:19
#16
Wait a minute.....so I have a stock ECU, MAF, and turbo on a DE. On a 96 200SX SE-R. So I CAN run WITHOUT O2 sensors? Not sure I'd want to unless there is some sort of gain. I like my A/F meter.
2010-05-29 16:06:21
#17
calum doesnt delete the o2 form the ecu unless requested.
2010-05-29 19:59:02
#18
good stuff.

so there's no need to play with it really unless you've got all the bolt on mods and it runs lean at the top end
2010-05-29 20:38:31
#19
OK, great thread, really!

You guys have thick o2 sensors, which according to what I know, have 0 to 1V readings (some reach 1.1-1.2V). From what I also know, they are zirconium, but I am not 100% sure on this one.
What I know from sure, is that N14, B13 and P10 in Europe use thin titanium o2 sensors, which (important) reads from 0 to 5V, not 1V as yours.

Having in mind the above, is it true that our o2 sensors are not only dealing with monitoring for stoichiometric, cruising and idling?

I've had this debate with many people for years. If anybody clear that out for once and ever, it will be a huge step forward for me, and many more using titanium o2 sensors I guess.
Here is my *.bin - please take a look at it! [url]http://jagy.jm-art.cz/nissan/martin_bg/Stock 512.bin[/url]
2010-05-30 08:08:37
#20
Originally Posted by NightStalker
Wait a minute.....so I have a stock ECU, MAF, and turbo on a DE. On a 96 200SX SE-R. So I CAN run WITHOUT O2 sensors? Not sure I'd want to unless there is some sort of gain. I like my A/F meter.


No, B14's (OBDII) don't like the O2 disabled.

Originally Posted by THOR
calum doesnt delete the o2 form the ecu unless requested.


Please read

Originally Posted by Vadim
My mistake guys, I thought I saw him say it himself. I definitely heard another tuner tell me that Calum disabled the O2, but I guess that was for his specific setup.

Best bet is to double check your tune

http://www.sr20-forum.com/calumsult/14187-few-questions-regarding-vvl-bin.html
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