02 signal tap?

[RXXXII]

sup guys got some wiring questions... got a gauge on the timer I got for A/F... i looked up the ECU pinout for the RB20 and from what I gather pin 29 on the following upload seems to be where I need to tap... am I right?



Only thing I'm wondering is why they have the pinout reading "O2 heater ground" for one pin, but no "O2 signal" for the signal wire... thats why since It's reading exhaust gas that pin 29 is where I need to tap.

[RRRRB]

A stock o2 sensor isnt gonna tell you anything useful, no point to hook it up, if you need to monior AF ratio then buy a wideband

[RXXXII]

A stock o2 sensor isnt gonna tell you anything useful, no point to hook it up, if you need to monior AF ratio then buy a wideband

I'm well aware that the signal does not provide accurate readings to be anything short of useful. But my question was not if I should hook it up or not. I don't half a** anything on my car. If a product I buy has a bunch of functions... some of which I would never use... they would all still be hooked up and operating.

I was just asking if maybe the translation from japanese to english resulted in the O2 signal wire to be called exhaust gas sensor.

[supermario680]

It would seriously be pointless... But anyways... The stock 02 sensor will provide a 0-1 volt signal vs a 0-5 signal like a wideband, so its gonna be all jacked up. I wouldn't even bother until you get a wideband since you'll need to wire it all differently when you do anyways....

But if you REALLY want to know, I would just start it up, get it warm and probe that terminal to see if you get between 0-1 volts, if so then I would say yea its the right one.

And "a gauge on a timer for a/f"? Huh? Am I just not understanding this cuz its 5am?

[Detroit.Tee.Tee]

It would seriously be pointless...

^ This.

A narrowband reading is binary. One or Zero. It's useless to monitor it. The ECU changes AFR so quickly, all you will have is a little pretty bouncing light.

[RXXXII]

It would seriously be pointless... But anyways... The stock 02 sensor will provide a 0-1 volt signal vs a 0-5 signal like a wideband, so its gonna be all jacked up. I wouldn't even bother until you get a wideband since you'll need to wire it all differently when you do anyways....

But if you REALLY want to know, I would just start it up, get it warm and probe that terminal to see if you get between 0-1 volts, if so then I would say yea its the right one.

And "a gauge on a timer for a/f"? Huh? Am I just not understanding this cuz its 5am?

yes, you read it right... a TIMER with A/F options... check it out:
http://apexi-usa.com/shop/index.php/aut ... onics.html

As for everyone else, like I said, I'm not asking your opinion on if I should hook it up or not. I have a timer that has a A/F function using the current stock o2, so I WILL hook it up. REGARDLESS if I'm going to use the function or not.

I don't half a** s*** like a lot of "tuners." If I decide to show someone things in my car or decide to sell it, EVERYTHING WORKS. I don't get into a situation where I'm like "oh you don't need that" or "I just didn't hook it up all the way"

If someone could give me some actual input on the situation, it would be greatly appreciated.

[supermario680]

Ummm I did... Did you not read my last paragraph? (the one about checking for 0-1 volts?)

Ah I see.... A TURBO TIMER that is DESIGNED to use the stock o2 for a "theoretical" a/f ratio... Lol... Gotchya.... You made it sound like you were hooking this up to a wideband a/f (the standard) in which case it wound be reading SUPER lean all the time...

You should have mentioned it was designed for stock 02's right off the bat....

[wrgibson]

The exhaust gas sensor is the same thing as the O2 sensor.

[Detroit.Tee.Tee]

I see where you would WANT to hook this up, but truth be told, I tapped my Z32's harness for the "A/F" function on the turbo timer, and it was completely useless. Absolutely a waste of time. It doesn't work properly half the time, and you can manually set the time and leave it there.

Half assing s*** isn't what it's about. It's about hooking something COMPLETELY AND UTTERLY USELESS UP on your car. The "A/F" ratios on turbo timers are as useful as those PeP Boys stick on fender vents.

I am done with this. You want to tap your factory harness for a useless piece of equipment, by all means. Yes, It's the number 29 pin. Exhaust Gas sensor. Enjoy.

[RXXXII]

Ummm I did... Did you not read my last paragraph? (the one about checking for 0-1 volts?)

Ah I see.... A TURBO TIMER that is DESIGNED to use the stock o2 for a "theoretical" a/f ratio... Lol... Gotchya.... You made it sound like you were hooking this up to a wideband a/f (the standard) in which case it wound be reading SUPER lean all the time...

You should have mentioned it was designed for stock 02's right off the bat....

Yes, I didn't mean to make it seem like I was singling you out for not helping. Thanks for your input on how to check if that pin was correct.

Thanks to everyone who actually gave help to let me know that was the correct pin for the tap.

I understand Its pointless, but I like all my stuff to function as intended.

TIMER INSTALLED, working as advertised. no problems.

[gawdzilla]

pin 29 is the correct pin.

if i had the OP's turbo timer, i would also hook this up. why not? its an advertised function (ok, maybe a bit gimmicky), but any turbo timer is arguably unnecessary too. at least this way, he will know when his car is operating in closed loop and if his narrowband is working correctly.

[RXXXII]

pin 29 is the correct pin.

if i had the OP's turbo timer, i would also hook this up. why not? its an advertised function (ok, maybe a bit gimmicky), but any turbo timer is arguably unnecessary too. at least this way, he will know when his car is operating in closed loop and if his narrowband is working correctly.

At least I'm not the only one that wants things to function properly. Thanks for the backup man. +reps