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 .
IIRC 52 means that the ECM is losing power (like someone is disconnecting the battery). So, make sure that *ALL* the power wiring is solid. Check the battery terminals too. Other than that maybe the ECM is bad and is slowly losing its "mind".
Hey guys , I checked all connections & grounds , all seem ok . I cleared the codes and now it keeps flashing a different code each time it is reset AND the fuel data display only will read zero . Is it time for a new ECM ?