| Author | Topic |
|---|
Location:
Sydney
Registered:
May 2002
|
|
1JZ o2 sensor voltage....
|
Tue, 14 September 2004 11:54
|
 |
|
have anyone put a multimeter on the o2 sensor to see what voltge 12:1 ect is??? im in the process of calibrating my jaycar a/f meter and thought i could save a bit of money going to the dyno....
|
|
|
Location:
Perth
Registered:
October 2003
|
|
Re: 1JZ o2 sensor voltage....
|
Wed, 15 September 2004 00:03
|
|
|
The tuner set my stoich voltage in my Haltech E6X as 551mV, hope this helps.
|
|
|
Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
|
|
Re: 1JZ o2 sensor voltage....
|
Wed, 15 September 2004 00:16
|
|
it's hard to give an exact number as the response of a narrow band sensor to AFR is like a switch.. at stoich it switches over from near 1V to near 0V. the actual voltage at which this occurs varies with sensor age and poisoning, and could be anywhere from 0.4 to 0.6V.. also depends on the earthing between sensor and ECU 
maybe you could set motor to a certain rpm.. like 2000 (no load) then richen up a a set rate (1 'thing' every 5 seconds) and see when the O2 response changes drastically. at that point, you've probably hit stoich. or you could compare it directly to a 5 gas analyser at a local mechanics using similar method?
|
|
|
I supported Toymods
Location:
Australia
Registered:
November 2003
|
|
Re: 1JZ o2 sensor voltage....
|
Wed, 15 September 2004 00:41
|
|
| mx83toy wrote on Tue, 14 September 2004 19:54 |
have anyone put a multimeter on the o2 sensor to see what voltge 12:1 ect is??? im in the process of calibrating my jaycar a/f meter and thought i could save a bit of money going to the dyno....
|
Have you got a wideband or narrow band?
You know the narrowband is useless outside of 14.5 to 14.9
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: 1JZ o2 sensor voltage....
|
Wed, 15 September 2004 02:28
|
|
just like cruzida said
most o2 sensors are useless
plus i would not trust any air/fuel meter thats under 400 bucks
if you are goin to use it for tuning
an autronic or motec air/fuel meter is worth close to 2000 bucks
a good 02 sensor that probably lasts for a yr or 2 with occasinal tuning and thats it is worth over 400 bucks
after afew yrs the sensors read slower
so depends what u need it for but the cheap autometer air/fuel meters are a wank in my opinion
im looking at buying a meter from usa
its 700 or so bucks
comes with meter
i need to find out how easy and price are replacement sensors
if u have ever seen a wanky air /fule gauge work its either
rich or lean
when u accelerate its full rich
when u back off its full lean
its not accurate
|
|
|
Location:
Sydney
Registered:
May 2002
|
|
Re: 1JZ o2 sensor voltage....
|
Wed, 15 September 2004 15:50
|
|
cool thanx for the responses....i might go out and buy myself a good o2 sensor and use that....i've heard bosh have one for arount the 400 mark??? but i'll hook this thing up in the mean time since i have it now and see if it can asist in my lil tuning escapades on the street, as i came across something weid the other day..where i thought the car was running nice as far as a'f goes i added feul and gained power (going off my apexi rsm)?? obviously i must of been running to lean...weird thing is im now pushing (according the rsm) 248ps ATW @ 10 psi were as before i was making 256 @ 15psi my 0-100's dropped a heap i figure im loosing out on tourque now  i think it my be time to dust off the old wallet and book the car in to hills motorsprt for a tune!!!
|
|
|
Location:
Sydney
Registered:
May 2002
|
|
Re: 1JZ o2 sensor voltage....
|
Wed, 15 September 2004 15:52
|
|
btw im not losing boost i've actually turned it down for testing 
|
|
|
Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
|
|
Re: 1JZ o2 sensor voltage....
|
Wed, 15 September 2004 23:26
|
|
| sideshow wrote on Wed, 15 September 2004 12:28 |
im looking at buying a meter from usa
its 700 or so bucks
comes with meter
i need to find out how easy and price are replacement sensors
|
sideshow, whats the name of that meter? i think i've seen it at some stage..
if it uses the Bosch LSU4 sensor, they are available really cheap from some US VWparts site (www.1stvwparts.com) (under US$30) and locally from techedge for $100 i think for a nearly identical one. the variation from sensor to sensor seems to be ignored by most of the wideband tuners, but the MS guys are testing this variation.
you might be interested in http://www.megasquirt2.com/PWC/
Cya, Stewart
|
|
|
Location:
adelaide
Registered:
October 2003
|
|
Re: 1JZ o2 sensor voltage....
|
Thu, 16 September 2004 09:54
|
|
|
if youv got a manual for the engine it should be in there . But generally o2 sensors operate between 0 and 1 v. The higher the voltage the richer its running, normally about 0.6v is the stoich mark.
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: 1JZ o2 sensor voltage....
|
Thu, 16 September 2004 11:04
|
|
the air fuel meter is called lm-4 i think
its from usa
for about 700 bucks u get meter and sensor
but just remember this is not an tuning device
u need to take care of it properly
warm it up and down if u want the sensor to last
i have tested it on my car and seemed ok
when i start makin money ill invest in one hehehe
|
|
|
Location:
Sydney
Registered:
May 2002
|
|
Re: 1JZ o2 sensor voltage....
|
Thu, 16 September 2004 14:47
|
|
guyz get this guy some more work so he can get one!!!! (so i can use it  ) hey sideshow nicks datto is at stewies now i think he's going the autronic!! i think your still wiring it up (dont know what they are doing with it... phill is making up another intake manni for it then its almost ready for the wiring...that car is going to be a freakn weapon!!!!
|
|
|
