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Old 01-24-2010, 01:55 PM   #1
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Default How do I disconnect my factory O2 sensor

. . . to run my DIYPNP and LC-1 while still naturally aspirated?

Do I unscrew the pre-cat O2 sensor and leave it electrically connected and just tolerate a check engine light? Then wrap the sensor in a few ziplock bags, tape, and tie it out of the way? Not sure how hot these things get so not sure if that's a good idea.
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Old 01-28-2010, 09:44 AM   #2
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I would unscrew the pre-cat 02 and screw in the LC-1 in its spot. Then I would hook the narrow band output of the LC-1 up to the stock O2 sensor wire. This should get rid of your CEL and allow your MS to get the wideband signal.
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Old 01-28-2010, 09:50 AM   #3
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Quote:
Originally Posted by shuiend View Post
I would unscrew the pre-cat 02 and screw in the LC-1 in its spot. Then I would hook the narrow band output of the LC-1 up to the stock O2 sensor wire. This should get rid of your CEL and allow your MS to get the wideband signal.

well. he has a DIYPNP, there's no stock ecu left in the equation to either 1. send the NB signal back to or 2. throw a cel.



I'd, depending where I mount the LC-1 and build the unit, would either connect the output back through the stock NB connector or bring it into the DB15.
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Old 01-28-2010, 04:41 PM   #4
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If he is running a DIYPNP then why is the CEL even coming on? Isn't it controlled by the stock ecu?
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Old 01-28-2010, 04:43 PM   #5
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I don't think he's done it yet
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