i am in need of a pinout diag for a 02 sti uk as i need to pick up the o2 signal for a a/f ratio gauge, also if someone could tell me which o2 sensor to take the signal from please.......

 

Hiya Sy.
I was in the same boat when I needed a pinout for my 98 uk classic, when I was trying to fit a bee*r rev limiter. I phoned a local scooby dealer and they hooked me up with the image group " I think that's what they're called "
Just ring them on 01217 474000 and ask for subaru technical. Just explain you need a pinout ecu diagram for your bus. They'll need your chassis number to find the correct diagram. I spoke to a dude called Phil, he took my e-mail address and the next day he mailed me the pinout as a pdf document, simple as that, and the best bit is it was free

Hope this helps mate

 

Front 02 signal is B137 Pin 19, the previous i posted was for the WRX;

 

thanks for the replies
someone must have a pinout diag to locate b137 pin19 ???? or a link to one????

 

2004 Subaru Impreza WRX STi ECU Diagram

 

topman stu long time no speak mate

 

the ecu in my 02 sti uk has 5 plugs??? so still need a pinout diag to find the front o2 sensor signal wire pleeeaaaasssseeeee

 

is the ecu pinout a hard find for bug sti's?????????

 

B 137 has 31 pins, Pm me your email i will send it over.

 

bit pointless fitting a lambda meter anyway as it'll only work properly on idle and cruise.
Wont tell you a sodding thing when you really need it too.

 

agree it is for novelty more than accuracy as it is part of a digital display

 

looking into this a bit more as it is only a narrow band digi display thing.. should it be connected to the rear lambda signal (lower volt signal) either way im still struggling to find a 2002 sti pinout diag ???????????

 

right!! all sorted for others looking for a/f signals info (o2 sti uk) for wideband its b137 pin 19 & for narrow band its b135 pin 17

 

Just found this as am looking for the same will it be the same ecu mines 2005 sti
And a narrow band