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Old 11-12-2012, 07:10 AM   #190
roger 04 rt
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Joined: Nov 2011
Location: Massachusetts
Oddometer: 2,364
Originally Posted by Mr. Canoehead View Post
It is cold and snowy here as well and the mighty GSA is tucked away, waiting for some Chinook winds but IIRC, there are two wires. The reason I remember it this way is that the plug from the motronic has 4 pins and I puzzled over why there are only two coming from the PCIII. Then I realized that two of the pins are for the O2 heater circuit which the PCIII doesn't use. I actually thought about rigging up a circuit to power the sensor heater.

Fred is right, I have the same model as he does.

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No need to power the heater circuit on an 1150. I've tried it with and without a load resistor to simulate the heater. There is no error code if you leave the heater off--and nothing getting really hot! (On some motorcycles and cars you do have to provide a load to the O2 heater circuit, but not on the 1150.)
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