Hey guys and gals new here. I have a 96 4.0 manual that the CEL only comes on when driving on highway over 55 mph after around 5 miles. CEL will stay on if started and driven for a couple days after. If I let it sit 3-4 days CEL will be gone. Checked code and was front O2 sensors. If I drive it around town the CEL never shows up. Ideas? Thanks for any ideas!
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