How is this working for you Scott, I would venture to guess you have played with it. I may have to play with this during the weekend.

 

Scott,
I noticed on the your wiring diagram that only the heater ground goes to a chassis ground. All the other grounds seem to terminate in the EIO connector, which doesn't have a chassis ground. Is this correct? I've heard the term floating ground, could this be one?

 

no..EIO grounds to the PCM
heater ground goes to chassis..but thats it..everything else is used for analog outs 1 and 2 and are used to keep ground offsets from happening..

 

Thanks for the info. I'm putting my LC-1 in tomorrow, so I'm sure there'll be more ?????'s.

 

This sounds great. So if I buy two LC1's, I don't have to weld new bungs into my Kooks? Is there any pros or cons by running two LC1s WBO2s with HPTuners?

 

Only if they break. Mine's being exchanged as we speak.

 

True, not as common as going to your local parts store to pick one up.

 

I guess worst case you just unplug your MAF and run in SD mode

 

That is what I do..

Bill

 

yeah.but the most common bosch LSU4.2 is $40 at 1stvwparts.com.....less than teh standard stock o2's run at most parts stores

 

Running in SD has nothing to do with the widebands/narrowbands....
SD is just using the VE table..
closed loop/open loop..it doesnt care

 

Running my LM1 today as a narrowband. Everything went good up to the end where I had to sire the anolog wires! I hit a wall there, I have 3 wires, bare (ground) Red anolog 1, white anolog 2. Well now I have four wires on the stock 02 sensor and I have no idea which one is signal and which one is sensor ground? I know there should be heater 12V and heater ground also. Anyway I had to leave the project as it is until I figure out were my anolog wires go. BTW I put it into the passenger front 02 sensor hole. Anyone can help it would be great.

 

The narrowbands switch because the PCM slaps the fuel
around to make it so, because it needs it so, and lets the
cats scrub it out.

If you liked cobbling you could make a "narrowband" output
off -any- wideband signal, using a comparator IC referenced
to the 14.7:1 voltage and an output network that produces
a 0-1V signal. Something like a LM339, couple or three
resistors.

After putting headers, I find my NBO2s switch much slower;
only at higher RPM do I see fast switching, low gas flows
are lethargic due to sensor cooling effects.

 

got mine hooked up and it works great,i have an xd-1 gauge installed also,awesome stuff

 

This is great info

 

i just got a ses light for my front 02 that is now my lc-1.It says its not switching properly.I changed the update rate to 1/6th like suggested.

 

if you are using the lc1 as a narrowband you also need to change your o2 switchpoints in your tune to all be whatever your lc1 narrowband crossing point is...somthing like 451ish I think is teh default value in the lc1 narrowband side

 

should i set all the values to this point for that bank.anyone shed a little more on this??

 

yes..for the bank that you are using the wideband to do narrowband stuff..set all values to = the narrowbnd switch voltage on the LC1

 

thanks a lot if it pops the code again i will give that a shot.