D series ebay headers usually come with two O2 sensor locations, one which your using that only reads 1 cylinder or the one im using which reads all 4 cylinders.
Use the other sensor location at the collector(where it meets the cat) so you get a reading from all 4 cylinders, you have to extend the o2 sensor cable by splicing and soldering an extra length of wire or by purchasing an extender. That way your gettin the proper reading from all 4.
yeah noticed it when i was installing my ones, not good with a solder so didnt bother extending it lol
Originally Posted by TbM
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