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Old 05-15-2011, 12:21 AM   #1
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Default LC1 wiring -- To ECU or Not to ECU

I'm installing this in the interior next to the MSPNP with the sensor running through the shift boot.

I already have the wires tapped where I had the Bipes ACU attached when I had the stock ECU in the beast. I want to wire the ground and 12v from the LC1 to the tapped wires leading to the MSPNP.

I've seen for and against. I wouldn't hesitate at all if there weren't more draw from the O2 sensor. The red wire isn't that large, so I can't see too many amps of draw.

Experience? Opinions?

Jon

Last edited by jonljacobi; 05-15-2011 at 03:46 AM.
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Old 05-15-2011, 12:55 AM   #2
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How I built every harness I've put together. Never an issue.
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Old 05-15-2011, 02:26 PM   #3
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Let me run this by you, just to make sure I've got it correct for my 93';

1. Red wire from LED and one black from the momentary switch to the calibration wire on the LC1.

2. Black wire from LED and other wire from momentary switch tapping to black/green ECU harness ground wire.

3. Blue and white (I have no green) wires from LC1 tapping the black/green ECU harness ground wire.

4. Red wire from the LC1 tapped to the white/red 12V on the ECU harness.

5. Brown wire from the LC1 to the red/blue on the ECU harness, disconnecting the stock o2.

Alternatively, cutting the red/blue and wiring the brown LC1 wire to the 10 wire of the MSPNP center connector.

Anything wrong?

Jon
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