Help! Wiring A/F to ODB2b ECU

[Micko]

Hey,
I have currently hooked up an A/F Meter and my engine light will come on intermitantly apon engine ignition, sometimes after 5 mins or 10 mins,..
just to make sure the signal wire is tapped into the right wire, can someone tell me which O2 sensor wire from the pinout should be used?
eg SHo2S / PO2S etc etc, any help would be excellent thank you.

[ECU-MAN]

So2

A8 should be a white wire

[Micko]

umm there isnt acually as secondary o2sensor.... the primary wires are there but on connect A8 there isnt a wire... FFS this is driving me up the wall

Edit: ive tried the Primary O2 Sensor wires on C1/C16 C1 gave me a reading but thats the one where it would trip the engine light on and off.. ive done a ecu dianostics test and it didnt give me any errors so i honestly dont get it, unless i have to tap in after the PCM module?

[saxman]

why not just tap the a/f gauge into some other wire... it'll be equally as useful.

Hook it up to the tps sensor... you can make it move on command!


but seriously, you could always try to tap into the seconday o2 sensor at the sensor itself... at least to see if it'll solve your cel issue

[ECU-MAN]

oopps sorry

C16 would be a better option

[CRXer]

Dont the EM1's use those 4 plug ecu's?

How many plugs on your ecu,& are they grouped together or is there a space between the B & C plug making the C plug a D plug(therefore OBD2A)?

Like saxman said your prob better off hookin into your stereo,the lights will look prettier,they might jump to the beat.

Get a wideband o2 if u want this guage,I found a haltech one the other day for just $300 brand new,uses the bosch sensor which is good value for money,& this will most likely calibrate to your guage.Its got a narrow band output as well so u can keep your ecu happy & can just replace your original o2 with this( saving u having to weld more bungs in).

[ProECU]

If you guys want a good Wideband sensor package, that simulates narrowband to the ECU, give www.wb02.com (http://www.wb02.com) a go.

They do great packages.

[Micko]

it looks exactly like the pinout connectors A - B - C - Blank.
the only reason why i wanted to put the A/F meter in it was to see what mix my engine was doing, so i knew if i was running to rich or not. otherwise i would have just doing something like hook it up to something gay. but i've like to use it for what i bought it for.
my Em1 just only has 3 connectors and by the looks of it i dont even have a secondary o2sensor and if i use the primary one it trips the engine light, so i think its fair to say i should just give up and sell the gauge...
thank you for all your help tho guys, its probably best to spend the money on something like hondata s200... the c2 gauge cost me like $200 what a waste

[saxman]

it looks exactly like the pinout connectors A - B - C - Blank.
the only reason why i wanted to put the A/F meter in it was to see what mix my engine was doing, so i knew if i was running to rich or not. otherwise i would have just doing something like hook it up to something gay. but i've like to use it for what i bought it for.
my Em1 just only has 3 connectors and by the looks of it i dont even have a secondary o2sensor and if i use the primary one it trips the engine light, so i think its fair to say i should just give up and sell the gauge...
thank you for all your help tho guys, its probably best to spend the money on something like hondata s200... the c2 gauge cost me like $200 what a waste
the problem is that with a narrow band o2 sensor, the a/f meter isn't going to tell you want your engine is doing. The information from it is absolutely worthless. You need a wideband o2 sensor to be able to see what mix your engine is doing.

the comments about hooking it up aren't to be a smart ass, it's so that the guage you spent your hard earned money on actually does something worthwhile, and doesn't just light up random colors for no paticular reason.




at proecu, you're absolutely right... the wb02 units are wonderful, especially for the price. I have one in my box o' tuning supplies.

[Micko]

the problem is that with a narrow band o2 sensor, the a/f meter isn't going to tell you want your engine is doing. The information from it is absolutely worthless. You need a wideband o2 sensor to be able to see what mix your engine is doing.

the comments about hooking it up aren't to be a smart ass, it's so that the guage you spent your hard earned money on actually does something worthwhile, and doesn't just light up random colors for no paticular reason.




at proecu, you're absolutely right... the wb02 units are wonderful, especially for the price. I have one in my box o' tuning supplies.
Thank you for clearing that up, so why the hell would they invent a a/f meter if it doesnt really do anything at all... lol i'll be on the look out for a wideband o2sensor, where can i find some good ones? and is there anything else i might need to know?
thanks guys

[saxman]

because people will buy them... same reason there's a lot of other parts on the market... those resistor +20hp chips, big wings, body kits, etc... people like to think they're buying something useful

[ProECU]

at proecu, you're absolutely right... the wb02 units are wonderful, especially for the price. I have one in my box o' tuning supplies.

and i just invested in the LA1 :)