Re: P0138 Fault
Sorry about that guys. I suppose I should have looked at some of the earlier posts about this fault code. It is not uncommon for Ford HEGOs to take a dump, and I'm sure they're made by the same vendors. They look like it. It has not come on since it turned itself off, but I envision it coming on again.
I noticed the one guy had possible vacuum leak. I don't remember if anyone replied to that, but certainly if it has a good sized vacuum leak, it will try to fatten up (at least Ford's strategy would) and hence would throw a code of some type at least for out of range.
thanks again
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