The temp gauge sensor in pre-updates is at the rear of the head, not the block, this applies to both OBD1 & OBD2, I am not sure what years of the updates use this same loaction before they went to the front sensor only which in the pre-updates is for the PCM to use to control mixtures etc as well as the aux fan....
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JJ
Do it once, Do it right!
2014 WK2 Overland
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