Originally posted by philmartin
Also, where would be the best place to peel back some outer covering and check the insulation?
usually, right at the the terminations on the thermostat housing you'll see the insulation at the ends coming off. i think it's even hotter further back by the injectors, but then you could be asking for trouble if you disturb the connections there. if you are not about to change the harness let sleeping dogs lie. BTW the harness costs ~$500...