Innovate LC-1 Wideband with s300
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here's how to hook up an LC1 to an OBD1 honda ecu
LC1 wires:
brown (analog 2) this is your wideband signal, connect to D10 (ELD) on your ecu
yellow (analog 1) this is your narrowband signal, connect to D14 (O2 signal)
black (calibration button/light) connect to the red button and light then ground to chassis
green/white (signal grounds) connect these to D22 (sensor ground)
blue (heater ground) also connect to D22 but not to the same point as green/white - I used a copper bar and connected green/white on one end and blue on the other and D22 to the middle - that way they're all grounded to the same place but their signals won't interfere with each other
red (12 power) connect to A25
Then go into hondata Options > Settings > Wideband Lambda and tell it that 0v is 7.35 af and 5v is 22.39
LC1 wires:
brown (analog 2) this is your wideband signal, connect to D10 (ELD) on your ecu
yellow (analog 1) this is your narrowband signal, connect to D14 (O2 signal)
black (calibration button/light) connect to the red button and light then ground to chassis
green/white (signal grounds) connect these to D22 (sensor ground)
blue (heater ground) also connect to D22 but not to the same point as green/white - I used a copper bar and connected green/white on one end and blue on the other and D22 to the middle - that way they're all grounded to the same place but their signals won't interfere with each other
red (12 power) connect to A25
Then go into hondata Options > Settings > Wideband Lambda and tell it that 0v is 7.35 af and 5v is 22.39
i just hooked mine up today. the only thing i did differently from you, sohc_student, was that i hooked up the blue to chassis ground, left the yellow unhooked (i still have the stock o2 sensor with the wideband in the 2nd bung), and i have my values set differently (3.25v=22afr) because i was reading instructions for hooking it up to the 2nd o2 sensor on an obd2 ecu which apparently can't see more than 3.25 volts.
everything seems to be working perfectly. i was just coming back to this post to ask if i could change the values to include the entire 5 volt range when using the eld input but i see you've already answered that question :)
everything seems to be working perfectly. i was just coming back to this post to ask if i could change the values to include the entire 5 volt range when using the eld input but i see you've already answered that question :)
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You can wire your LC-1 permanently on the car to read WB when in open loop and NB when in closed loop..you can't just use both at the same time though.You have to switch either to use..If you'll just use the LC-1 for tuning purposes then remove your stock O2 sensor temporarily;replace it with the LC-1 sensor(unless you have two bungs welded in place)..wiring the LC-1 to the ELD is a pretty straightforward affair.Happy tuning!
SOHC_STUDENT wrote:here's how to hook up an LC1 to an OBD1 honda ecu
LC1 wires:
brown (analog 2) this is your wideband signal, connect to D10 (ELD) on your ecu
yellow (analog 1) this is your narrowband signal, connect to D14 (O2 signal)
black (calibration button/light) connect to the red button and light then ground to chassis
green/white (signal grounds) connect these to D22 (sensor ground)
blue (heater ground) also connect to D22 but not to the same point as green/white - I used a copper bar and connected green/white on one end and blue on the other and D22 to the middle - that way they're all grounded to the same place but their signals won't interfere with each other
red (12 power) connect to A25
Then go into hondata Options > Settings > Wideband Lambda and tell it that 0v is 7.35 af and 5v is 22.39
Thats what I just did and it works perfect. I also have a moates.net O-Meter tied into the brown wire.
Remember to disable your O2 heater.
I actually have mine set like the picture but with Lambda checked instead of Air/Fuel Ratio.
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Does grounding the LC1 unit to D22 eliminate the need to put a resistor in the stock o2 harness, or will I still need to connect the two black wires with a resistor?SOHC_STUDENT wrote:here's how to hook up an LC1 to an OBD1 honda ecu
LC1 wires:
brown (analog 2) this is your wideband signal, connect to D10 (ELD) on your ecu
yellow (analog 1) this is your narrowband signal, connect to D14 (O2 signal)
black (calibration button/light) connect to the red button and light then ground to chassis
green/white (signal grounds) connect these to D22 (sensor ground)
blue (heater ground) also connect to D22 but not to the same point as green/white - I used a copper bar and connected green/white on one end and blue on the other and D22 to the middle - that way they're all grounded to the same place but their signals won't interfere with each other
red (12 power) connect to A25
Then go into hondata Options > Settings > Wideband Lambda and tell it that 0v is 7.35 af and 5v is 22.39
After searching the forum, I have seen Spunkster say repeatedly that the LC1 is not recommended because it does not accurately mimmick a narrowband sensor. After reprogramming the voltages on the LC1 to match the factory wideband output are there still any problems? Will it still not function as well as the PLX product?