lc-1 pid at idle

[WicketMike]

im having a very similar problem (maybe the same)

i bought mine from dynotune. where did you get yours?

[joecar]

The values did change a bit after I changed the ground for the blue wire. Even though something's still screwed, do all the hookups look right? :

green ->to flashscan
brown to flashscan
yellow not hookedup
white not hooked up
black to led and pushbutton (pushbutton and led to ground)
red to switched power supply

...and blue to battery ground, I presume;
yes, these look correct;
when engine is running, measure voltage on red wire wrt blue wire, should be better than 12V.

I forgot to mention that I had to reattach the the wires for the serial in and serial out connectors. I know the wires are securely attached. Are the connectors the same internally, although one is marked in and one is marked out? Could I have these backwards. I wouldnt think that they're different.

If you have these backwards, the Windows LC-1 programming application won't find the LC-1 and you won't see the programmed voltages as you posted earlier.

[joecar]

im having a very similar problem (maybe the same)

i bought mine from dynotune. where did you get yours?

See if it passes the "bench test"; if it doesn't, contact Innovate to see what they can do for you.

I bought mine from Innovate's website.

[joecar]

Thanks JoeCar, I'll do some testing on the exit volts of the wires after i find the voltmeter.

You're welcome. Let us know what you see.

[mtnman]

...and blue to battery ground, I presume;
yes, these look correct;
when engine is running, measure voltage on red wire wrt blue wire, should be better than 12V.

No, I have the blue wire connected to chassis ground (the body of the truck).

[joecar]

No, I have the blue wire connected to chassis ground (the body of the truck).

With your DMM, measure the voltage between the battery negative terminal and the blue wire (may need 2 people to do this).

[joecar]

And also do this...

when engine is running, measure voltage on red wire wrt blue wire, should be better than 12V.

[mtnman]

I measured voltage between the brown and green wires, 1.32 volts. Havent measured other voltages yet, because other wires are behind the dash. I'll keep ya posted.

Joecar, when we're done with troubleshooting this, it may be a good idea to append this (type of troubleshooting) to the lc-1 install manual.

[joecar]

Programmed for flatline 2.5V and you see 1.32V across brown and green...?

Doesn't look good, but we'll see what the other voltages are (brown and white, red and blue).

Good idea, we'll get some kind of troubleshooting steps added.

[mtnman]

Programmed for flatline 2.5V and you see 1.32V across brown and green...?

That is correct.