It was one I bought from the dealer about 6-7 months ago because the lx guys were talking about how they were running this new longer style sensor on the 6.1's and it was reducing their knock. So I bought one from the dealer along with an extension that combined the black plug from the 6.1 to the new gray plug for this sensor. My WK1 freaked out with this sensor as well so I just figured the 6.1 didnt like it. Talked to Chris on the lx site about my recent issue and he said to try my other sensor that came with the Jeep because he has not heard of any complaints from any of the lx 392 guys who run his intake with this extension
works good now, nothing bad anymore, dont know if its helping but I dont think its hurting. Wish I would have tried a diferent 6.4 sensor on my WK1 to see if it did reduce any kr, had some good timing in it but would have been cool to get more...
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