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Old 11-29-2018, 06:51 PM   #7
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Join Date: Mar 2017
Location: California

Originally Posted by intothelabyrinth View Post
One side goes to the test connector (red or pink wire) and the other side goes to 12v... Basically the ecu grounds the test connection when it senses a rich condition, which lights up the light, then un-grounds it when its lean. It should cycle rich for a sec, then lean, back and forth.
Yeah, I misspoke. I was already looking at the diagram of led test light, but why you didn't use resistor in your picture? Did this setup works better or same?
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