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Best Place For A Wideband O2

ascenion24

By ascenion24,
in Engines & Forced Induction

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ascenion24 Enthusiast

ascenion24

Posted
Posted

Im going to weld in a bung for my techedge wideband O2, was just curious about the best place for this, should I put it somewhere on the dump pipe, or somewhere just before the cat? I could use the original narrowband O2 position and get my wideband to simulate a narrowband signal, but apparently the factory O2 position is too close for a wideband.

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Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

I installed mine in the factory position and using the simulated narrow band signal back to the powerFC for close-loop operation.

From what I gather, the closer the better because there is no lag in readings. I know heat kills O2s but if you're car is running predominantly rich the O2 should survive.

ascenion24 Enthusiast

ascenion24

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Posted (edited)

Good point...

johnnilicte do you leave your wideband permanently in or once you finished tuning did you put your narrowband back?

Also how do i find out what the standard narrowband signal looks like so you could simulate it? or did you wideband controller do all this automatically? I think with the techedge your suppose to plot the points for the wide-narrow conversion (possible file on this already out there but I havnt looked)

Edited by ascenion24
scotty nm35 Grand Master

scotty nm35

Posted
Posted

I have left mine in for logging purposes, apparently the Bosch sensors are good for 80,000k's. They should be mounted no more than 12 inches from the turbo outlet according to the destructions.

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

I'm running an Innovate LC-1 with DB Gauge, I have it permanantly installed in the car. So far no dramas, have done 2000kms (I rarely drive my car).

Innovate LC-1s have 2x Outputs, 1x for Wide Band, 1x for Narrow Band.

saliya Rising Star

saliya

Posted
Posted
Im going to weld in a bung for my techedge wideband O2, was just curious about the best place for this, should I put it somewhere on the dump pipe, or somewhere just before the cat? I could use the original narrowband O2 position and get my wideband to simulate a narrowband signal, but apparently the factory O2 position is too close for a wideband.

Too hot.

They need to be in operational temperatures, but not boiled.

The good news for you is that the techedge/bosch combination has a heater; so you can pretty much place it where you like.

I'd put it a couple of feet back from the outlet; if that means "just before the cat" then that should be fine.

Cheers,

Saliya

STATUS Grand Master

STATUS

Posted
Posted
I have dramas with my innovate, as i believe it is too close to the turbo, about 20cm. Interestingly innovate sell a bung extender/heatsink to alleviate this problem.

doesnt every one :thumbsup:

ive got about 4 lc1's (2 wont talk to the programmer fk knows why) and 2 i use for V8's. My old LM1 seems to be the most reliable and is used for auto tune ecu's.

I get about 2 weeks from a sensor (my dyno uses the same sensor) bear in mind it runs 8 hours a day and gets hammered by vibration and sooty cars. The heat sink is cool and i use one for tuning alot of the jap turbo kits where the sensor is about 10cm's from the exducer.

I would fit the sensor about half way between turbo and cat, they dont like impact (rocks, constant water spray etc) so it is nice to have it up a little.

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