Innovate Wideband Help

[kelzzrocka]

i thought i had to use the wires for the calibration button and LED also connected to the o2 harness. or just the power side goes on the o2 harness and the ground i can use any ground?

[jaywood]

Take a picture of everything that you have.

You should have a controller, a gauge, a little led, the sensor that goes in the exhaust, and a calibration button. Right? The calibration button needs the black wire.

[kelzzrocka]

White 12v from o2 --> RED LC1--> red wire for gauge


BLACK o2 --> YELLOW LC1---> White wire for gauge signal


White Ground from o2-->White,Blue LC1---> extra black wire for calibration ground


One side of the button-->BLK side Of LED--> the black wire that is tapped into the white/blue ground on o2


other side of Button--> Red Side OF LED--> BLACK LC1 wire


COMPLETE LOOK


....any inputs?or corrections? just have blk electrical tape on till i have it correct then ill solder it n shrink tube etc.

[nando]

those joints are a mess! :(

it would be better to have used new pins and crimped your new sensor into that plug, instead of soldering on stainless wires. did your twist jobs pass a pull test? it doesn't look like they would.

as far as using it with Motronic - the reason it doesn't work out of the box is because the warmup and error output voltages are set to a stupid value by default. you'll want to reprogram the narrowband outputs, use ~.45v for the error & warmup states.

I'd also do this even if you're using it with a standalone ECU, only you'd be setting the wideband error & warmup states to a stoich value.

what happens by default is the controller outputs a full-rich state while the sensor is warming up (which takes 10-15 seconds). During this time the ECU is seeing this full-rich value and is trying to correct for it. That makes the engine run like shit.

I have no idea why they default it to rich, the safer way would be to default the reading as lean, or even better, stoich so a cold/bad sensor doesn't have any effect at all.

[kelzzrocka]

yeah it is a mess =/ but its just for testing not for the finished set up,pull test is solid except for the 2 wires to the gauge..so first reprogram the narrowband then test it out?i have a piggyback "UNICHIP" that the guy who i bought the kit from had it running on his ecu .i havent wired that up yet because i thought that wiring up the wideband 1st just to get it working was important, then i would wire the piggyback.This morning i pluged my messy wires to the o2 harness to test out ,with the key on and nothing came on, no led, gauge didnt come on , nothing i used this as a reference and am i doing something wrong over here ? www.e30tech.com/forum/showthread.php?t=50206

[nando]

the car has to be running. the O2 relay only energizes with the engine running.

http://www.megasquirt.325ix.com/MS_to_Motronic/E36_to_E30_O2.html

[kelzzrocka]

-___- shoulda figured that out 1st....lol, but wouldnt a light atleast come on?or something would go on?since theres power n ground?

[blueapplesoda]

Nando, setting the default output to stoich is a good point, I never really looked into it.

In the last few plug and play kits, I've been using new pins and connectors

Wiring scheme is

Pin 1 - Sensor Ground (Grey) -> LC-1 White (sensor ground), one end of button, black pigtail of LED
Pin 2 - O2 Signal (Black) -> LC-1 Yellow (output 1, default narrowband output)
Pin 3 - Heater Ground (White) -> LC-1 Blue (system ground)
Pin 4 - 12v From o2 relay (White) -> LC-1 Red

Crimp them to bmw pn 61 13 1 376 202 and Re-use your old o2 plug housing. If you need new plastic housings, I have a bunch on hand. I also have a connector kit that is $30 shipped and will come with a boot, the housing, and 4 crimp connectors.

You will be left with a Black calibration wire, the red pigtail of the LED, and the other end of the momentary button. Connect the three (crimp/solder), and insulate it and stuff it away.

Derek
DedericMS

[Wrinckled]

Thank you kelzzrocka & Blueapplesoda for the info, I was about to post a new thread and then I searched and found this.