Page 1 of 1
o2 Sensor
Posted: Tue Aug 25, 2009 4:00 pm
by MadeInThe80s
So I need to hookup my new o2 sensor and I have no idea where the previous owner stuck the connector that goes up into the dash. Anyone take a pic of what it looks like and kinda where it should be?
It currently has a 4 wire o2 sensor plugged into it and I think that may be whats throwing me off on it. Ive found a two wire round plug that I think was the original o2 connector and if so, Im set.
Posted: Tue Aug 25, 2009 4:22 pm
by mooreofit
you have a megasquirt. i highly recommend a wideband for tuning. tuning with a narrowband sucks.
Posted: Tue Aug 25, 2009 5:27 pm
by MadeInThe80s
I do have a wideband, thats why I needed to know which plug goes back to the harness.
Posted: Tue Aug 25, 2009 5:56 pm
by mooreofit
witch wideband and ill let you know. i have an lc1. ill double check the signal output wire color right quick.
Posted: Tue Aug 25, 2009 6:04 pm
by mooreofit
if its an innovate you need to go to the brown wire.
although the yellow wire simulates a narrowband voltage you could probably make it work. i just dont know how well the resolution is going to be because its a 0-1v signal.
if you just have the sensor by itself then you will need a wideband controller to interface with the megasquirt such as the innovate lc1- lm1 or others.
megasquirt supports alot of controllers.
Posted: Tue Aug 25, 2009 6:07 pm
by MadeInThe80s
Im using the LC-1 as well. Sounds like we have similar setups.
Posted: Tue Aug 25, 2009 7:26 pm
by mooreofit
smart mines think alike!
Posted: Tue Aug 25, 2009 7:33 pm
by MadeInThe80s
Did you put yours in the stock location? And did you just run the wire straight over to the ecu location? or tap the stock connector? I cant find where mine is located.
Posted: Wed Aug 26, 2009 12:05 am
by dr.occa
MadeInThe80s wrote:Did you put yours in the stock location? And did you just run the wire straight over to the ecu location? or tap the stock connector? I cant find where mine is located.
80s, the factory O2 is a single wire type with IIRC a yellow round connector. i'll post up a pic when the vampires go back to bed.
Posted: Wed Aug 26, 2009 8:17 am
by MadeInThe80s
I bet its the one Ive been looking at then.
Posted: Wed Aug 26, 2009 1:22 pm
by mooreofit
im just plain confuzzled? are you tapping the wideband or the stock narrowband?
i welded a new bung in my exhaust for the wideband and kept my stock in to run the stock. ecu. because my auto tranny is ecu controlled
Posted: Wed Aug 26, 2009 5:39 pm
by MadeInThe80s
I'm hooking up the wideband to the stock wire to the megasquirt unit. I asked about the bung because I was worried about heat burning up the sensor. I guess the bung on bottom would work, I just now thought of that! Hah.
Posted: Wed Aug 26, 2009 9:15 pm
by mooreofit
the sensor can take the heat. they just dont like pressure because it will skew the reading. ie: before a turbo or something.
Posted: Wed Aug 26, 2009 10:27 pm
by dr.occa
here are a couple of shots of the stock o2 and connector:
