Need help with o2 heater sensor wiring

Discuss topics related to the CA18DE and CA18DET series engines.
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rotorific
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Joined: Fri Jul 28, 2006 11:43 am

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Okay I never hooked up my o2 sensor heater wire and I really would like to especially since the colder weather. I was wondering where did you guys hook it up to? I have yet to find a 12 volt source other than the fog light relay but thats on the other side of the car. -Gabe


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capowered240
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Car: 90 240sx

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Any 12v switched source will work.

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c-rad
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Car: 1991 Nissan 240SX w/CA18DET
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Whats wrong with the factory plug??? As long as you hook up the brown wire by the battery, the factory O2 sensor plug should be fine.

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capowered240
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Car: 90 240sx

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rotorific
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Joined: Fri Jul 28, 2006 11:43 am

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Well I looked and checked and there wasnt a spot for it. Ill look again but I can swear that there isnt not saying there isnt supposed to be one in its original stock location

dattodude
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Car: CA18DET Datsun 1200 B110 Sedan
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Maybe you have a CA18DE loom? That only had a single wire for the 02 sensor.

Find the ECCS relay and splice a wire into that. Put an inline fuse between the o2 sensor and the 12v source. Heaters can go short circuit with dramatic consequences.. However if you have a fuse specific to te 02 heater, then bad cold engine fuel economy will be the only problem, if the heater were to go short circuit

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rotorific
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Well actually I had a KA24E loom so that may be the problem as is with the CA18DE loom as they both have a single wire O2 sensor?? I dont know honestly but I think I am just going to find a source as with my aftermarket fan. -Gabe


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