hey guys can u help me which a/f wire is on the 06 ecu wrx, i hook it up to oxyen sensor but it dosent seen to be working right , so can u guys plz help me , thanks

any help plz

Not working HOW exactly......

What gauge are you TRYING to use?

Reading full rich or lean?

Display blank?

Numbers running up and down between AFR's 13.5 & 16 in cruise?

Some details of your problem might help you get an answer!

__________________
[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

ok well the neddle is very very jumping up and down , when i go to full gas on the paddle it goes pass the rich, i wire it up to oxygen wire sensor on the ecu pin , i just wanna make sure it the right wire that all

If your AFR gauge is anything like mine, during highway driving it (should) run back and forth between lean and rich in constant arcs, picking up pace depending on engine rpm. And similarily when flooring it, I'm pretty sure it will always shoot into rich and stay there.

__________________
Air is for pussies.

o.K..............The operation you see it totally normal for an OEM NARROWBAND O2 sensor.

The cycling you see is called closed loop control.....The ecu cycles the mixture rich-lean-rich-lean in cruise mode to save fuel and keep the cat(s) working.

The sensor is only capable of seeing Rich or lean (0 -1volt) with stuff all accuracy.

You need a wideband Sensor and controller like this Tech Edge unit to see anything worth while or meaningful from an O2 sensor.
Widebands have approx 50,000 voltage (Mv) steps from 0 - 5 volts, compared to 200 steps for the 0-1 volt narrowband sensors.

The narrowband gauges are pretty flashing lights and not much else......

__________________
[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

ok cool thanks guys , i guss i hook up the right wire then, i was abit worry when some people say u have to hook it up to rear oxy wire, it just when the car idle te neddle i got just fliking like crazy dosent stay in one spot ,maby it the gauge , any of you guys have ecu pint out for 06 wrx? i just wanna make sure i got te right wire

Rear O2 would display leaner than the front one......

Either way that gauge will show nothing relevent or usefull, apart from showing you when the sensor dies (It'll display full rich constantly) and at what point the ecu uses closed loop.

__________________
[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]