I am installing a wideband O2 sensor and need to earth it to an electrical ground/earth. What is the easiest / best place to do this. The wideband has 2 earths, one which has to go to the block, the other to electrical.
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Posted 12 February 2018 - 10:50 AM
Anywhere on the chassis, the unibody is the best ground you will find on the car. There are several mounting bolts in that area under the hood that ive seen people use, just be sure its metel on metal contact, scrape off paint if needed. I always use some grease in there to keep oxygen out of the connection. As long as the bolt is tight, the grease wont hinder the connection.
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