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Old 12-19-2011, 12:33 PM   #21
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Joined: Apr 2003
Location: Long Beach, CA
Oddometer: 11,887

Great job, Roger!

I'm going to read your posts over more carefully when I get a chance.

Originally Posted by roger 04 rt View Post

Still to be done:
--Figure out what to do about Motronic heater wires (cut or add a resistor)
You might try powering the heater in the LC-1 sensor from the ECU, you know, just like the narrow band heater. The ECU O2 sensor heater output is always on when the motor is running, and I don't recall but the heater may also be on whenever the ignition key is on.

The LC-1 may have a PWM heater control. If so, use the ECU O2 heater output as the high current input to the LC-1 heater supply. Note: 'High current' is a relative term here. An O2 sensor heater only uses about 16-18W or 1.25-1.50A


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Poolside screwed with this post 12-19-2011 at 12:43 PM
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