icemanbwab Posted March 8, 2005 Report Share Posted March 8, 2005 Got a 1994 Seville SLS. Just had Tranny rebuilt at 115000 miles and am now getting a P047 code on ths OBD1 diag. It says "IPC - PCM Data Problem". I've also had the surging light problem which other posts have said to be caused by bad ground or possibly a faulty relay. Anyone with a better explanation found recently? Link to comment Share on other sites More sharing options...
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