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turtleman
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PostSubject: Re: Wideband   Fri Oct 18, 2013 1:16 am

charlieRobinson wrote:
So where exactly do you plug the sensor in? The bung hole in the exhaust pipe?
Yes
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charlieRobinson
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PostSubject: Re: Wideband   Tue Dec 09, 2014 3:25 pm

Dear everyone with wideband O2 sensors:

I would like to mount my PLX box in that back space where my CD holder thing used to be in the console. Is there any easy access spots below the center console to bring the cable up through?


Also, has anyone used a PLX or other wide band also as the narrow band sensor?

I am reading about it now but wondering if anyone has any EXP on it.

Thank you
study
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matt270avian
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PostSubject: temp   Tue Dec 09, 2014 3:31 pm

charlieRobinson wrote:
Dear everyone with wideband O2 sensors:

I would like to mount my PLX box in that back space where my CD holder thing used to be in the console. Is there any easy access spots below the center console to bring the cable up through?


Also, has anyone used a PLX or other wide band also as the narrow band sensor?

I am reading about it now but wondering if anyone has any EXP on it.

Thank you
study

Your best bet if you didn't want to drill a hole would be to just run the cable next to the existing rear o2 cable and then come into the firewall from there. There's plenty of room to run it behind the dash once you get it that far.

If you didn't care about drilling the hole, you could just go straight up. Behind the CD thingy is just open air, carpet, metal, then you're out. Would definitely be easier, but it sealing it would be a concern.
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charlieRobinson
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PostSubject: Re: Wideband   Tue Dec 09, 2014 4:16 pm

If I cant find a nice spot under the console I think I will go through passenger wiring harness side.

Also, found this awesome write up about using the wideband for narrowband signals as well!

http://www.hptuners.com/forum/showthread.php?22967-How-to-wire-up-PLX-Wideband-Controller-with-Narrowband-Simulation

This will be quite helpful!
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deekster_caddy
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PostSubject: Re: Wideband   Tue Dec 09, 2014 5:00 pm

That will be helpful indeed! Just make sure you have an HPT Pro - that has the aux input for the wideband.
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turtleman
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PostSubject: Re: Wideband   Wed Dec 10, 2014 1:41 am

Chris Kemp back in the day informed me the PCM doesn't like narrowband signals from other sources. So you can't really use the wideband as your primary o2 unfortunately. I haven't verified this myself but I have no reason to doubt it.

As Derek said, you'll want an analog input on your scanner to record the wideband along with the rest of your data from the PCM. The PLX has separate lines to use between your PLX gauge and a data logger so it's convenient. If you don't have the analog inputs on your tuner, you can instead connect the wideband signal output from the PLX box to the signal line that used to be for your EGR valve pintle position sensor circuit. (I know you deleted your EGR valve so this is an option for you) It uses the standard 0-5v signal scheme so you would just make a PID on the scanner that looks at the voltage coming from the EGR position circuit and gives you the corresponding AFR. This is something you have to set up in the logging software of course.
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charlieRobinson
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PostSubject: Re: Wideband   Wed Dec 10, 2014 1:06 pm

I dont know.. all the dudes on HPT are saying its great.

I also think having 1 sensor producing data for wide and narrow band is better than 2 sensors doing each. There has to be a small margin of increased accuracy this way.

And finally, it's probably safe to say the original O2 sensor is still in place, while it seems to be working just fine, it has ~165k miles on it.

I think i will run the 2 sensors independently for now but I will experiment with using the wideband sensor for all O2 sensing functionality later in the spring.
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