Recently had wifes '85 Eldorado tuned up . New wires , plugs , distibuter cap etc . by our local shop , in fact it was at the place she bought it . Next day driving along it stalled , no bucking or anything just stalled . Got it home ok and ran trouble codes ... only shows code 52 . Cleared code and started it up ... ran good then stalled and I pulled up same code again . Oh yes , car starts right up with one turn of the key right after it stalls AND did not have this problem before tune up . TCC switch also disconnected . Any ideas ?? Thanks .