help setup LC1 to V2

[400ss]

i just get my LC1 wide band andi want to set it up to start tuning my truck, i read several threads about it but now im confused some threads say serial and others ones say analog, wich one should i use and whats the difference when using it on AutoVE or CALC VE.. do i first need to calibrate the Sensorr?? it says the outputs are precalibrated from factory

[joecar]

Serial.

See here (the see especially post #3 of the last link):

V2 serial/digital wideband logging:
showthread.php?t=8858
showthread.php?t=8115
showthread.php?t=10251 post #2

V2 serial/digital AFR input (LC-1):
showthread.php?t=8115
showthread.php?t=7532
showthread.php?t=8348
showthread.php?t=9340 post #3

Use the calc_pids.txt file located in post #1 here: A-New-Twist-on-CALC-VE-Table-Computing-the-Entire-VE-Table

i.e this file: calc_pids.txt

for AutoVE and AutoMAF use CALC.WO2BEN

for Calc.VET and Calc.MAFT use CALC.SELBEN

[joecar]

You need to do two calibrations on the LC-1:
- heater calibration (once per LSu4.2 sensor),
- free air calibration (peridically).

With serial comms there is no voltage offsets to worry about.

[400ss]

i read about this, but its not 100% clear yet.

On the serial port cable--> It has 3 wires, i will made the cable using the efilive serial cable and the lc1 serial cable, i will cut and solder the wires using the diagrams..
(the DB9 side goes to the efilive and the 2.5mm male goes to the LC1 2.5mm OUTPUT female) ?????

The LC1 control box has 6 wires:
Red---Ignition 12v suply
White(system ground)---Do i need to tie this one with the blue wire and ground both to the car?
Blue(Sensor ground)---- Do i need to tie this one with the white wire and ground both to the car?
yellow(Analog1)--- this wire is not going to be needed anymore?
Brown(analog2)--- this wire is not going to be needed anymore?
Black---- Calibration wire (what i should do with this one?? should i use it for calibration or i can use the efilive to calibrate the sensor??)) do i have to use the LED and switch???)

Sorry for all the questions, i been reading but not 100% sure

[joecar]

Yes, the serial cable crosses Tx and Rx (this is called "null modem");

yes, the serial cable connects to the LC-1 SERIAL OUT (it is so labelled);

don't forget the blank terminator plug, it goes into the LC-1 SERIAL IN (it is so labelled);


you need only these connections on the LC-1:
- red = switched/fused battery power,
- blue = battery ground,
- black = positive side of switch/LED (anode+)
- white = negative side of switch/LED (cathode-)

[ the switch and LED are in connected in parallel with each other ]

note that black is not a ground;

there is no need to tie white to blue or ground;


yellow and brown are used for analog signal output only, so they are not needed, tape them off so they don't short.

[joecar]

The white/black wire connection to the switch/LED is optional, you can have those connected to see what is going on when you don't have V2 connected to vehicle.

The status of the LC-1 can be displayed by either LED or V2.

Free air calibration can be initiated from either V2 or switch.

[400ss]

All right thanks for all the info. im going to start making the serial cable. will follow the threads posted on top of this one, and i will update the results, thanks for all.. i respect you because i been reading as much as i can and i can see that JOECAR allways is there to help people. thanks

[joecar]

You can bench test the LC-1 before installing it by doing this:
- connect terminator into SERIAL IN;
- connect SERIAL OUT to null modem cable to V2;
- connect battery power/ground (using a fused jumper wire);
- connect V2 to vehicle or to USB port on PC (to power it up);
- on V2 LCD/keypad navigate to wideband screen, and you should see the AFR (place some brake cleaner on rag and cover the sensor, you should see the AFR go rich).

[400ss]

Thank you. I have finished my serial cable now.. To be able to see the wideband screen on the EFILIVE first i need to complete the serial wideband tutorial right?? let me do it and i will report the results.. this is very important for me. i really want to learn and i want to be a tuner on the future..

[joecar]

Ok... the tutorial shows you how to enable the serial wideband in V2... the tutorial is lagging behind the software...


[ start V8 S&T, goto Devices, goto Serial I/O, set Com Port to Wideband, set Wideband to Innovate, click Save (saves to file), click Program (programs to V2). ]

[ if you want to automatically log the wideband pids, go Logging, and checkmark Automatically Log External (Serial) Pids. ]