incubuseva

iTrader: (13)

So I didn't have much luck searching for info on wideband O2 sensors.

I just want to know a few things. Current setup is 91 NA, Apexi neo.


Should I keep the stock O2 sensor?

Should I unplug the stock O2 sensor so that my neo will work on narrow band?

What is a good wideband kit + what does it include/what is really needed?

Should I run it all the time?



I do know that a good location for it is after the stock bung so that I can run it for longer without it burning up.


My boss has a snap-on gas analyzer, but I have too many exhaust leaks for it to work as well as I'd want it to.

AUGieDogie

iTrader: (4)

Considering that its a N/A you probably dont really need a wideband, your stock settings should be just fine.

With some widebands you can use a narrowband output to your ECU so it can replace your narrowband. You should weld a bung into your pipe about 20 inchs back to extend the sensors life. If you delete your narow band just plug the hole and stick with the wideband. You can run it all the time everyday and it should last for years and years.

I really like the PLX widebands, i use the older DM300(?) in my hardtop and I will be installing the newer AFR modual in my vert in the next week or so.

incubuseva

iTrader: (13)

I already have an SAFC that I would like to tune, hence the wideband.

incubuseva

iTrader: (13)

Anyone else?

Boosted11

iTrader: (11)

Should I keep the stock O2 sensor?

- I would keep the o2 sensor. I'm no expert at this but from what I know with a dead o2 sensor you get bad gas mileage. So the ecu needs the stock o2 sensor.

Should I unplug the stock O2 sensor so that my neo will work on narrow band?

- Just leave it.

What is a good wideband kit + what does it include/what is really needed?

- I just bought the plx wideband, haven't gotten it yet but I heard its right up there falling behind innovate. It all depends on how much you want to spend. If you have alot to spend, than I would get innovate.

PLX:

http://www.plxdevices.com/products/dm5/afrsmcombo/

Innovate:

http://www.innovatemotorsports.com/x...cat=262&page=1

Should I run it all the time?

- Do you think people put out the money for widebands just to weld a bung on, toss the sensor in, get a reading, then take it out, and plug the bung they just welded in? No, leave it in.

1SWEET7

iTrader: (1)

Sell the Neo and buy the new S5 Rtek ECU. It looks pretty sweet. www.pocketlogger.com has them.

incubuseva

iTrader: (13)

Thanks a ton Travis. That's what I wanted to know

toplessFC3Sman

iTrader: (1)

The innovate is a very good product for the money (and for $200 for the basic LC-1, or $240 for the LC-1 and one of their G2 or G3 gauges, its one of the cheapest too), and replicates a narrowband O2 reading by default on one of its two analog outputs. I've had mine on my car for over a year now, and since moving the unit's mounting location from the transmission mount to the chassis, its been completely reliable. I have the o2 bung welded in about 3' downstream of the turbo, so it sits a little bit before the main cat. If you have a pre-cat, you'll either need to ditch it or just stick with a narrowband, since widebands need to be at least 2'- 2 1/2' from the exhaust ports to survive, and there can't be a cat (or air line feeding a cat) in front of it. DO NOT put it in the stock O2 sensor location, this will burn it up. In the box comes a plug with the correct threading to plug this hole if you dont want to keep your stock narrowband connected (although if you already have it, theres no harm in keeping it since narrowbands are more resilient than widebands), a steel bung that you can have welded onto the stock exhaust, the sensor and wideband controller cable, as well as instructions, software, and all you need to program it if you want to use different output curves. If all you're doing is simulating a wideband and driving a gauge, get one of the G2 or G3 gauges so that you can keep all of the outputs at their default settings.

You want to keep a narrowband (real or simulated) so that the stock computer can go into closed-loop control, meaning that it adjusts how much fuel its sending the engine in realtime to match a pre-set AFR and get better fuel economy.

I leave mine in all the time, and re-calibrate every month or so after leaving the car overnight to ensure that the readings are accurate. The innovate and bosch sensor (I think pretty much all the widebands use the bosch sensor) need fresh air to calibrate correctly, so after driving one evening, rev the car up to 6k or so and shut it off while keeping the throttle planted. This way you pump a lot of fresh air thru the engine and into the exhaust. Then just wait overnight for natural airflow to occur and help clean out the rest and calibrate in the morning before you start the car.

incubuseva

iTrader: (13)

Is the PLX any good - I'm more worried about the fact that you don't have to calibrate it. Does it do it automatically or is it just set on something + never changes?

RX7Tuner.

I have found the innovate to be a nice product. It integrates well with megasquirt.

toplessFC3Sman

iTrader: (1)

the bosch sensor needs to be calibrated every once in a while or its output will drift, and any readings you get from it won't be correct. I dont know whether the PLX allows you to calibrate or not, but if it doesnt, then it seems useless for any more than the first month (or less if you're running pretty rich, or have it too close to the manifold, or not mounted at the right angle to the exhaust etc)