Author Topic: o2 signal wire a the dme/ecu (Read 2694 times)

bearsbmw · « **on:** February 07, 2009, 09:23:05 AM »

I have a intresting problem... when using the bently it says my o2 signal wire to the ecu is yellow however apon testing non of the four yellow wires at the dme are for the o2 signal... naturaly im confused and need some suggestions to why this might be or if anybody else has taped the wire at the ecu

bearsbmw · « **Reply #1 on:** February 08, 2009, 11:49:57 AM »

e36 1994

Problem solved! bentley is wrong about a wire ... It say's the o2 signal is yellow when infact it's transperent white! and everybody should take note because it's right beside a yellow cam postion sensor wire and I ended up almost frying my ecu ... thanks!

nuvolarossa · « **Reply #2 on:** February 08, 2009, 01:52:36 PM »

what are you doing to that signal? (wich wideband are you using to feed the ecu?)

bearsbmw · « **Reply #3 on:** February 08, 2009, 02:27:38 PM »

Quote from: nuvolarossa;66138

what are you doing to that signal? (wich wideband are you using to feed the ecu?)

I just wanted to monitor the narrow band signal with a air/fuel guage...I had the o2 sensor spliced and it was not clean or practical to keep it like that so I went directly to the ECU and came across the bentley mistake!