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Ecm or pcm bad ?

Jobe379
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Jobe379

Jobe379

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Hey guys going crazy here the last few weeks I have been having problems with my 99 I have codes p1693 , po602 po122, have a smarty and running stacked with a edge cts , have replaced the tps,  crank sensor,  and alternator all last week and still hasn't changed still pulling low voltage code to the tps could it be a bad ecm or pmc once i start it of a moringit wll rev up and down on its own in till I shut it off and clear codes then she runs fine ,  any input would be nice thanks in advance 

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