lc-1 question

[spawn87]

ok so first of all my question is not about how to install it into my car i got that part down.

my question is i want to run it with the db guage it came with and also hook it into my ecm link.

is it possible to run both at same time (just want to be clear)?
and to what pin can i hook it up to besides front or rear o2 sensors. i want to keep that running like stock to not have issues with smog and so far ive read if i hook it up to any of the two i cant use them like the ecu would stock.

so what other pin can i assign it to? my idle switch is available can that be used?

 

[TFFC]

You sure can do both, read the instructions that came with the wideband. It tells you how to hook up both, Im unsure of the wire colors, but i want to say like yellow to gauge and brown to your pin on ecu, I'm not sure what pin tho on a 2g but plenty of threads out their.

 

[RednekBubba]

Got the same controller, it is yellow to gauge and brown to your ecu. I am not running a factory ecu or I would tell ya what pin. Sorry......

 

[spawn87]

its ok at least you guys help me with one of my questions to make things easier

 

[SlowDSM_GSX2g]

is pin 75 and you can use brown or yellow, brown programed as a wideband for default, yellow is a narrowband, but it can be easily programed as a wideband too on logworks programer

i have brown on gauge and yellow on ecu pin 75

 

[toofast82]

The voltage scale for a narrowband(~1v) and wideband(~5v) sensors are different, so you wouldn't be able to throw it in the rear o2 position and have it give proper feedback to the ecu without adjusting the O2 switchpoints in the computer code itself.

The info is out there to do this with the 1g ecu as many including myself, have run "native" wideband.
Not sure if "dissasembly" of the 2g ecus is at this point yet?
If anyone would know this though, it would be "ceddy"

As far as logging, there may be a few available that you can use. For example some 1g guys use the "egr-t" input for logging with MMCD.
It may require some calculator work to figure A/F ratio due to fact that it may log as a hex figure that for example would maybe read a scale of 0-255 if i recall correctly.

 

[SlowDSM_GSX2g]

through log wworks you program the analog outputs (brown and yellow) independently to meet your needs.

 

[snowborder714]

A few people have hit this on the head (which you could have found easily by searching as I've posted it many times). You run either the yellow or brown to the gauge, and the other to the ECU. You then must reprogram the yellow wire using LM Programmer (Analog 1 inside the program) and the included serial cable to have the same settings/values as the brown wire (Analog 2 inside the program). You can read more about the reprogramming, as well as the version check.
innovatelc1orlm1install [ECMTuning - wiki]

You can read about what available inputs you have here.
externalsensorinput [ECMTuning - wiki]

 

[spawn87]

A few people have hit this on the head (which you could have found easily by searching as I've posted it many times). You run either the yellow or brown to the gauge, and the other to the ECU. You then must reprogram the yellow wire using LM Programmer (Analog 1 inside the program) and the included serial cable to have the same settings/values as the brown wire (Analog 2 inside the program). You can read more about the reprogramming, as well as the version check.
innovatelc1orlm1install [ECMTuning - wiki]

You can read about what available inputs you have here.
externalsensorinput [ECMTuning - wiki]

well the "which wire goes where?" had already been answer and as for what pin i want to use if you read the thread is the actually problem seem how i want to keep all my censor plug inns alone like the o2 censors the only one i can see been an option is the MDP pin but i dont know what that even means so idk what else to grab onto.
if need be ill just leave it alone and just monitor with the gauge.

 

[snowborder714]

If you need/want to leave all your sensors alone, then you might not have a choice but to not input the signal to the ECU.

 

[spawn87]

thats what i was thinking.

because i cant use the rear o2 since i have a cat.
front o2 would not be smog-able (for what ive read)
the baro and IAT are not real options seem how i want to keep it plunged in all time.
and coolant temp is not recommended.

leaving only the MDP pin (whats MDP?)

is there any other pins available like the idle switch for example?

or can someone explain the front o2 pin better and how it would change readings on my car as far as smog regulations go since i dont get the wiki.

 

[snowborder714]

MDP = Manifold Differential Pressure sensor. It senses if the EGR valve is functioning properly. And since you most likely need that for smog purposes, I'd nix that as well.

I don't know how narrowband simulation would work with smog tests, but that might be an option. You'd run the wideband in the front o2 spot and then use v3 to simulate the front o2 signal. Just not sure if that'd work and pass smog. Maybe a CA resident can chime in about that.

 

[spawn87]

MDP = Manifold Differential Pressure sensor. It senses if the EGR valve is functioning properly. And since you most likely need that for smog purposes, I'd nix that as well.

I don't know how narrowband simulation would work with smog tests, but that might be an option. You'd run the wideband in the front o2 spot and then use v3 to simulate the front o2 signal. Just not sure if that'd work and pass smog. Maybe a CA resident can chime in about that.

ok will i wont be using the stock front o2 location i have a bung welded right after the flex joint and thats where im going to run the wideband o2. for what ive read i can run this sensor inplace of the narrowband with the analog 1 into the pin 76 and enabled the simulator making the ecu think im still running a normal front o2 sensor (correct me if im wrong) i will talk to the guys in the ecm forum to see if its a smogable option. but as far as the car functions the way i just explained it will the car run with all its functions like normal?

 

[knochgoon24]

You may want to have the bung welded in before the flex section in case you develop a leak in it.

 

[snowborder714]

Yes, you can use the LC-1's analog 1 output (yellow wire) to feed the front o2 sensor. But why would you do this if you plan on keeping the front o2 sensor and installing the wideband sensor in a separate bung? I thought we were trying to figure out if you could log the wideband.

 

[spawn87]

Yes, you can use the LC-1's analog 1 output (yellow wire) to feed the front o2 sensor. But why would you do this if you plan on keeping the front o2 sensor and installing the wideband sensor in a separate bung? I thought we were trying to figure out if you could log the wideband.

im looking at diffirent options to choose the best one. i was thinking that if i dont connect the WB to the ECM link then ill just use that third bung so i dont mess with anything else.

but if i can have it serve as both the wideband for my gauge and ecm as well as serve as the narrowband for the ecu by selecting the simulator then ill use the front locations. im just trying to see all the possibilities thats all.