the black wire is the one you want, you could get to it through the shifter hole as the sensor is right there
ps the meter will be mostly useless as the mixture swings rich and lean till you hit the wot switch at full throttle
Where the best place to access the trigger lead for the o2 sensor. My o2 sensor has 4 wires, 2 white, 1 grey and 1 black. I haven't tested it with the multimeter yet but I assume (thanks to derek A), it's the black wire.
Here are some pics of what's it like.
This is it here;
http://autospeed.drive.com.au/cms/A_0217/article.html
Where the best place to tap the trigger wire from the o2 sensor? Near the o2 sensor itself?
I know it was talked about recently here;
http://www.bimmer.info/forum/showthr...en+sensor+wire
the black wire is the one you want, you could get to it through the shifter hole as the sensor is right there
ps the meter will be mostly useless as the mixture swings rich and lean till you hit the wot switch at full throttle
all america wants is cold beer warm cat and a place to take a poop with a door on it
A narrow band is useless. I'm in process of tuning my MAF via a wideband sensor. Check out the Innovative product LC-1.
www.tuneyourengine.com
Jeff
Bellevue WA
90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
86 Porsche 951 - Track Toy