so I tried to hook it up on my Z31 and basically it shows nothing at all- I changed the oxygen sensor and still nothing. It worked in my nx and I hooked it up with the intention that it could help me solve my hard starting mystery but it just seems to be reading really really lean. How come my buddy with a z32 has the same oxygen sensor and his works just fine- are our oxygen sensors high voltage or anything? I didnt think they were- they are only three wires- of course I am new to this car and am waiting for the fsm and am really kinda ignorant with it still. I have it hooked up to the white wire and I have checked my power and ground, both are fine.
__________________ ONE OF THESE DAYS I'LL FIGURE OUT HOW TO CHANGE MY WIPER BLADES
so I tried to hook it up on my Z31 and basically it shows nothing at all- I changed the oxygen sensor and still nothing. It worked in my nx and I hooked it up with the intention that it could help me solve my hard starting mystery but it just seems to be reading really really lean. How come my buddy with a z32 has the same oxygen sensor and his works just fine- are our oxygen sensors high voltage or anything? I didnt think they were- they are only three wires- of course I am new to this car and am waiting for the fsm and am really kinda ignorant with it still. I have it hooked up to the white wire and I have checked my power and ground, both are fine.
Unless its a 5 wire wideband, then its uselss, throw it away.
Its because you have an old school zirconia 02 sensor. Btw those types of meters are useless, they only tell you if you are at open loop.
Mike
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There can only be one Icy Hot Stunta, Don't Hate.
i just replaced it with a new bosch one two days ago though! I know those gauges arent accurate- but its better then going blind isnt it?
Not really. Your still blind ya just feel beter about it.
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94 se-r saphire blue with lot's of crap
I'm just a monkey. I don't know shit.
In the white SE-R when the AMG benz did the ricer fly by on 408 :)
Not really. Your still blind ya just feel beter about it.
I'd rather have my A/F guage than not have it. It at least lets me know if I'm running rich at WOT , which is all I really care about. Running lean at WOT is an engine disaster waiting to happen , especially at 13 pounds of boost like I run. If you guys want to get all technical about it , that's fine , I've got my sensor and I won't trade it for anything.
As far as it being hooked up properly , on Zs there's really only one way to do it. The O2 sensor wire itself is a thick shielded cable , the thinner wires are the heater wires.
No shit- thats exactly how I feel- here is what Im asking though balliztic- why isnt mine reading with a new 02 sensor? should I hook it up to the car side of the plug- I have it soldered to the white wire from the oxygen sensor and it kinda reads lean at idle- I know thats not right and i know the the gauge works damnit b/c I just had it hooked up in my nx so I could tune my afc when I was running nitrous- remember about my fuel pressure problem? Do you think that I could have that little amount of pressure that the car just would run totally lean like that? I mean- when Im driving the thing doesnt even read at all!
__________________ ONE OF THESE DAYS I'LL FIGURE OUT HOW TO CHANGE MY WIPER BLADES
No shit- thats exactly how I feel- here is what Im asking though balliztic- why isnt mine reading with a new 02 sensor? should I hook it up to the car side of the plug- I have it soldered to the white wire from the oxygen sensor and it kinda reads lean at idle- I know thats not right and i know the the gauge works damnit b/c I just had it hooked up in my nx so I could tune my afc when I was running nitrous- remember about my fuel pressure problem? Do you think that I could have that little amount of pressure that the car just would run totally lean like that? I mean- when Im driving the thing doesnt even read at all!
When you pull the wire cover off the O2 sensor plugin , there should be 3 wires in there. The really thick gray wire is the O2 lead to the ECU itself. The other 2 are the heater wires. The thick gray wire has the outer covering , a layer of coiled suppression wire(This wire is "hardened" against external signal sources , it's easy to interfere with the 1 volt the O2 sensor puts out) another inner covering and then the O2 wire itself. To clear up any confusion , I pulled the covering off that part of the O2 wire that runs up by the throttle body inlet bend on its way over to the passenger side of the firewall.
From what I know about the Z31s ECU , it completely shuts off the fuel injectors when you are decelerating in gear , so you won't get a reading there at all. All other times , you should see at least the last LED light up at idle. Cruise (part throttle) , the LEDs should light up in a sweep back and forth from rich to lean , but I've noticed it doesn't sweep the entire dial , just about from the first 4 to the last 4. If yours isn't sweeping at ALL , you probably just missed a connection somewhere. A/F guages in particular are very sensitive to the connection , since there is generally less than 1 volt involved .
yeah man- it works and at idle it reads just the one led, once I hit the brakes or turn the headlights on though it goes blank- and the wire I have it hooked up to is the white wire that is run to the gray wire in the connection- Ive gone through and checked all my connections and everything is good though. Im just worried that I might be running too lean when the car is driving- the fact that it doesnt read is what confuses me, b/c this car eats gas like crazy it seems- maybe thats b/c Im used to a 4 cylinder though
__________________ ONE OF THESE DAYS I'LL FIGURE OUT HOW TO CHANGE MY WIPER BLADES
yeah man- it works and at idle it reads just the one led, once I hit the brakes or turn the headlights on though it goes blank- and the wire I have it hooked up to is the white wire that is run to the gray wire in the connection- Ive gone through and checked all my connections and everything is good though. Im just worried that I might be running too lean when the car is driving- the fact that it doesnt read is what confuses me, b/c this car eats gas like crazy it seems- maybe thats b/c Im used to a 4 cylinder though
If you like , just contact me on AIM and we can sort it out there.
I'd rather have my A/F guage than not have it. It at least lets me know if I'm running rich at WOT , which is all I really care about. Running lean at WOT is an engine disaster waiting to happen , especially at 13 pounds of boost like I run. If you guys want to get all technical about it , that's fine , I've got my sensor and I won't trade it for anything.
As far as it being hooked up properly , on Zs there's really only one way to do it. The O2 sensor wire itself is a thick shielded cable , the thinner wires are the heater wires.
Nope by the time it reads lean at WOT, its leaner than 14.7 which is adious engine if its turbo or even NA if you keep your foot in it.
Those gauges are worse than useless.
Mike
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There can only be one Icy Hot Stunta, Don't Hate.
Nope by the time it reads lean at WOT, its leaner than 14.7 which is adious engine if its turbo or even NA if you keep your foot in it.
Those gauges are worse than useless.
Mike
I beg to differ. The 2 previous cars I had this guage installed in , it was quite accurate of informing me of a lean misfire at WOT on one , and a post-MAF leak on the other. Saved both engines from certain disaster thanks to that guage , so again , I won't trade it for anything. If I would not have had that guage , both engines would have gone up in smoke. Best $60 I ever spent , no matter what you say.
I beg to differ. The 2 previous cars I had this guage installed in , it was quite accurate of informing me of a lean misfire at WOT on one , and a post-MAF leak on the other. Saved both engines from certain disaster thanks to that guage , so again , I won't trade it for anything. If I would not have had that guage , both engines would have gone up in smoke. Best $60 I ever spent , no matter what you say.
It will indicate lean as leaner than 14.5:1. Its useless as a tuning tool.
Mike
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There can only be one Icy Hot Stunta, Don't Hate.
It will indicate lean as leaner than 14.5:1. Its useless as a tuning tool.
Mike
Yes , it is useless as an accurate tuning tool , but that's not what I need it for. Currently I'm in the very low tuning stages , so I'm just using it to let me know if something is wrong. I actually don't consider O2 readings to be any sort of accurate. I plan on doing it the way other tuners do it and tune for no knock. I'm currently looking for a diagnostic type tool that hooks into the ECU and can tell me such things as timing advance , knock count , head temperature , using all the sensors the car already has. Both O2 and EGT readings are on the bottom of my list as far as accurate tuning methods go.
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