02-28-2014, 03:08 PM
Join Date: Jan 2014
Location: Pittsburgh, PA
Total Cats: 0
Innovate LC-2 installation in progress - wiring guidance requested
Greetings. I am in the process of wiring in an LC-2, along with Innovate's G-5 analog gauge. Right now I am focused on the wideband controller. I've got the sensor in the exhaust pipe, and the cable into the cabin via the rubber shifter boot. I am planning to mount the controller somewhere not too far from the stock ECU. I am not what you might call an expert when it comes to electronics. Far from it.
The LC-2 appears to be different with respect to the wiring than the LC-1. For my purposes at present, I need at the very least (i) switched power (and probaby not associated with the ignition system) (ii) ground, and (iii) one of the analog wires to the G5 gauge. (The gauge itself will need a little more.)
I am planning on putting in a standalone ECU in the future, so I would rather wire this thing up now in such a way that it will work correctly when that day comes. From posts I've read, it looks like I need to use the same ground for the standalone ECU and the wideband controller. I am considering putting in a wire grounded to the engine block or perhaps to the engine block's ground strap, and running it through the fire wall to serve as a dedicated ground source. Is this necessary, does it make sense, and if so, what gauge wire should I use?
The Innovate instructions suggest using a relay. I happen to have a relay lying around that I could use. The schematic diagram in the Innovate instructions contemplate a constant power source from the battery into the relay. Should I run a wire from the battery, or is there another good source for constant power for this purpose? If it is to come from the battery itself, where is the best path for routing the wire? Again, what gauge wire should I use for this line?
It looks like the wires from the controller for power, ground, and the analogue output are about 20 gauge wire. To the extent I need to extend any of these wires, would it be inappropriate to use 18 or 16 gauge wire to extend them, or should I keep searching for the same gauge wire?
Edit: It's a 2000 base.
Thanks in advance.
Last edited by sirfixalot; 02-28-2014 at 09:23 PM.
Reason: Should have mentioned year of car