LC-1 AFR reading problems.

[dewme5]

It really sounds like you have the narrow band o2 in there.

[whodwho]

4. BLACK - - - - - - - Calibration wire - - - - - - - - -ECU shock tower ground

This one should not be connected except while calibrating

6. BROWN - - - - - - -Anolog 2 (wideband) - - - - - Signal wire on o2 (black wire of the 4) AND AFR gauge signal wire (white)

You don't want to share the output, set both outputs for 0-5v output and use one for each

[jntar]

I'm using the gauge provided by Innovative.
I've matched both analogs before on logworks so that they are both 7.4 - 22.2 / 0v - 5v and it didn't help :(

How should I run the outputs then? I feel like I've tried nearly all possibilities and combinations.
Are you saying set them both to wideband and run one to the gauge, and one to MS?

Innovate makes many gauges. Each of which has different input wire colors.

Yes, set both as if they were wideband signals so both the gauge and the megasquirt sees 0-5v. Be sure you go calibrate the MS unit in tunerstudio to innovate lc-1 0-5v.

Does it read the same in tunerstudio as it does on the gauge?

[ak-]

What gauge are you using?
Do you have the LED and/or the calibration button wired in?

Get into log works and match analog 1 to analog 2. Dont run both the gauge and megasquirt off one output. Some have had issues when doing that.

I'm using the gauge provided by Innovative.
I've matched both analogs before on logworks so that they are both 7.4 - 22.2 / 0v - 5v and it didn't help :(

How should I run the outputs then? I feel like I've tried nearly all possibilities and combinations.
Are you saying set them both to wideband and run one to the gauge, and one to MS?

[jntar]

What gauge are you using?
Do you have the LED and/or the calibration button wired in?

Get into log works and match analog 1 to analog 2. Dont run both the gauge and megasquirt off one output. Some have had issues when doing that.

[ak-]

With this wiring it stays pegged at 22.2 AFR with occasional blips to a lower AFR if I downshift or upshift.


If I use Analog 1 instead of 2, it stays pegged at 7.4 AFR instead.

[ak-]

How close is the unit to your coil or plug wires? They do not like to be near ignition items. Mine pegged constantly until I moved it away from my coils.

Can you also post up a list of wiring? I'm a bit confused on what you have connected where.

The wideband controller itself is in my glovebox and my coil is mounted right behind my passenger headlight!

[LC-1 wire]

1. RED - - - - - - - - -12v switched - - - - - - - - - - Defroster switch
2. BLUE - - - - - - - - Heater ground - - - - - - - - - ECU shock tower ground
3. WHITE - - - - - - - System ground - - - - - - - - -ECU shock tower ground
4. BLACK - - - - - - - Calibration wire - - - - - - - - -ECU shock tower ground
5. YELLOW - - - - - - Analog 1 (narrowband) - - - - Capped off
6. BROWN - - - - - - -Anolog 2 (wideband) - - - - - Signal wire on o2 (black wire of the 4) AND AFR gauge signal wire (white)

[jntar]

How close is the unit to your coil or plug wires? They do not like to be near ignition items. Mine pegged constantly until I moved it away from my coils.

Can you also post up a list of wiring? I'm a bit confused on what you have connected where.

[ak-]

Are you running a stock computer or standalone?

standalone - whodwho msv2

This was working normally like it should when I was on Motronic - though it wasn't spliced into my o2 connector at that time. Just straight to the bung.


I've noticed when I upshift/down-shift the gauge will blip down to "X" AFR and quickly jump and peg to 22.2 and stay there.
So this means I am for certain getting a constant 5v? Does that point to a bad o2 sensor?

If I connect analog 1 (narrowband) instead of analog 2 (wideband) to my o2 signal wire, it stays pegged at 7.4 AFR (0v)

[nando]

Are you running a stock computer or standalone?

[ak-]

I have an LC-2, and from what I have heard, it is merely 2 wires less than the LC-1. If I were you, I would bust out that test light or a multimeter and check to see if your power wire for the sensor itself is getting power. Mine wasn't and I just re-routed it to a switched power source.

I did just that and I am getting power. I have my switched 12v from the defroster.

I re-checked my wiring again and again.
My sensor is brand new, I don't know why it would go bad. Anyone have a controller I could borrow to test? :/

[redsubdivisions]

I have an LC-2, and from what I have heard, it is merely 2 wires less than the LC-1. If I were you, I would bust out that test light or a multimeter and check to see if your power wire for the sensor itself is getting power. Mine wasn't and I just re-routed it to a switched power source.

[ak-]

After talking to my tuner. The dude says that regardless of how I wire the rest of the stuff, I should still be seeing a proper AFR reading on the gauge as long as I have the write signal wire going to my o2 harness sensor (the signal wire of the 4 on the stock o2 connector).

I know I have the write wire wired in, so does this mean I have a faulty wideband?

[ak-]

If you lived nearby you could borrow one of mine to test, but that's a bit of a trip.

That's awfully kind, thank you

When you open logworks, are you using the "connect" button, then selecting the correct virtual com port?

I hit connect and a pop-up told me it can't locate something-something. It was 1am and it was my first time dealing with logworks, so I just left it alone and tried trouble shooting other things.

What should I be looking for in Logworks once I get it working?

[ForcedFirebird]

When you open logworks, are you using the "connect" button, then selecting the correct virtual com port?