exodus_gs1

iTrader: (3)

The LM2 (duo) kit has everything to run dual widebands. Will that kit run as a wideband Nd not the stock narrow? Also its $700

joecar

You cannot hear the O2S oscillating in the exhaust noise...

what you're hearing in the exhaust is one or more cylinders misfiring.

soundengineer

iTrader: (16)

yes... it can be used a dual wideband
its 2 sensors, and both sensors can be either a wideband output or a narrowband output...or anything in the middle...
take a little bit of configuring....
but its just setting up the voltage outputs of both sensors to be teh way you want to to respond...anything from 0V~5v or any value inbetween

exodus_gs1

iTrader: (3)

Got it, and when it says it has a spot for a analog gauge thats for like a afr gauge inside the car right?

soundengineer

iTrader: (16)

No idea... Never used that function on it...

exodus_gs1

iTrader: (3)

ha ok, yea I'd like to trust the shop when they say "yup got you tuned up and your afr's are perfect" but I have I hard time believing in the human side of us that makes mistakes. But cool thanks for what help you did share.

white01ss

iTrader: (37)

When you have a wideband in the car and a 4" exhaust you can hear the exhaust note change pitch that coincides with change in AFR from a little above then below stoich. I think you'd have to be tone deaf to not hear it.

Nothing wrong with the tune or the engine.

soundengineer

iTrader: (16)

Sorry, if you are hearing a note, your STFT's are swinging too far....which means something is not right...

4" exhaust on my camaro for over 2 years....never heard an oscillation

several hundred cars I've tuned....and the only time I have ever heard it was when something wasnt correct...I went back and solved it, and that sound went away...

if you hear it....something is not right somewhere...whether its parts or the tune... something is not right.

joecar

The swinging of the NBO2 does not determine the trim... the average voltage over a collection of swings determines the trim;

you're hearing a change in combustion due to a change in AFR (not necessarily due to a change in trim)...


keeping mind that the NBO2 voltage swings about 4-8 times per second.

adamantium

iTrader: (3)

Im going to slide my ORY in a little deeper into the LT collectors and clamp it down hard as hell this time. Pass side wasn't in that far thanks to TSP's turd ORY fitment. This o2 was BNIB. I reset ECU to see if the code left after installing and instead BOTH o2s were throwing codes after that. The driver side is maybe a month or two old.

Oxygen sensors are part number DENSO 2344617

99VetteFRC

How can I run Both front stock O2s and Hook my innovative wideband(hase analog in and out connectors) so the PCM will read it and not affect normal driving. I have HPT basic and cannot hook the Wideband to the laptop to log. Can I use a rear O2 feed into the PCM and will it make the PCM change tune?

soundengineer

iTrader: (16)

the stock rear o2 is only used for monitoring the catalytic converters....
has nothing to do with the tune itself, which is why you hear about people having them "deleted" from the tune...

99VetteFRC

I deleted the rear O2s in my Chevelle. So if I wire the wideband output to the rear O2 wires at the PCM I should be able to read the wideband through my laptop where the rear O2 shows up on the scanner, correct? If I wire it like that, I then have to turn the PID back on in the PCM and it will want to set a Cat Efficiancy Code. Am I correct?

codyvette

iTrader: (24)

Sounds like a good idea... interested to see if it works