Installing a LC-1 WB o2 with TwEECer through EGR input.

[Fett]

Sorry to ask such a stupid question. I searched but couldn't find any "LC-1 install for dummies" info.

I just recieved my TwEECer and my LC-1 WB o2. I keep reading that if I delete my EGR I can use the EGR input to the PCM for my WB o2. But the LC-1 comes with a serial cable. I am assuming that I could use the serial cable if I was just running the LC-1 software to read a/f, but doing that won't allow the TwEECer to "see" it. So I would need to wire the WB into the PCM via the EGR input, if I wanted it to work with the TwEECer.

Are there any schmatics or "how-tos" on how to wire it up? There are a lot more wires coming out of the LC-1 than I expected.

 

[vristang]

I am just guessing at this point as I have not purchased an LC-1 yet...

But I think you will need to run the O2 output to the controller box, then route in into the egr.

Again, I am not real sure on that. But this is the impression I have picked up from reading the net.



jason

 

[Fett]

I am just guessing at this point as I have not purchased an LC-1 yet...

But I think you will need to run the O2 output to the controller box, then route in into the egr.

Again, I am not real sure on that. But this is the impression I have picked up from reading the net.



jason

Yea, the controller box has 2 "headphone jack" outlets for the serial connector to PC, it also has 7 loose wires, (blue, red, white, black, brown, yellow, green).

 

[Daggar]

I have the LM-1, not the LC-1 but if they're following suit then the two "headphone" jacks you describe are analog outputs for wideband. One can be used to feed a gauge while the other can be used to feed the EEC input lines for the EGR. It should be rather simple... all you're doing is feeding 0-5V from the LC-1 to a 5V reference line going back to the EEC. Don't fogret to disable the EGR with the TwEECer or you'll likely throw codes like they're going out of style. You'll also need to tell TwEECer that you want to reference those pins as AFR instead of EGR position.