OKAY, IM SURE YALL HAVE HEARD THIS PROBLEM MANY TIMES, BUT HERE IT GOES AGAIN. I HAVE A 1999 CADILLAC DEVILLE. IVE ONLY HAD IT FOR ABOUT 3 MONTHS AND JUST A COUPLE OF DAYS AGO I WENT TO START MY CAR AND IT TURNED OVER, BUT DIDNT START. IT SEEMED LIKE THERE WASNT ANY GAS BUT I KNOW THERE WAS SOME IN THERE. THEN I SEEN A MESSAGE THAT SAID FUEL DISABLED. I CHECKED THE CODES AND IT PULLED UP, P0603, P1631, P1632, AND A FEW MOR. I REALLY DONT KNOW WHAT THESE CODES MENT. SO THEN I HEARD IT COULD BE MY VATS SYSTEM, BUT I DONT KNOW, COULD ANYONE HELP. IS THERE A QUICK FIX TO THIS PROBLEM???

 

No not VATS related. VATS will cause a click to be heard and the engine wont crank over at all. You need to go to the basics. Do you have fuel pressure, verified with a fuel pressure gauge? Do you have spark? Then report back. Do a search on this forum about meanings of your codes.

 

I JUST CLEARED MY CODES AND ALL CODES SAYS HISTORY EXCEPT THE FOLLOWING TWO CODES, THEY SAY CURRENT, WHAT DO THESE CODES MEAN....B2750, B2719??????

 

CHECKED MY FUEL PRESSURE AND PLUGS, BOTH CHECKED OUT O.K., I CAN ALSO HEAR THE FUEL PUMP WORKING, SO IM BACK AT SQUARE 1....ANY MORE SUGGESTIONS????

 

OKAY I THINK I KNOW WHATS WRONG BUT IM NOT SURE, I HAVE A CODE OF PCM-P1631-HISTORY, (THEFT DETERRENT, START ENABLED, SIGNAL NOT CORRECT)...BUT IM STILL NOT SURE WHAT TO DO???/

 

The B2750 and P1631 relate to VATS. It is very possible ignition key cylinder need replaced; small wires tend to break where they attach to cylinder. You could use an ohm meter and measure resistance of key and at the 2 small white wires at steering column connector. Connector disconnected and key in run and start positions ohm meter reading should be the same and not flicker as key is rotated.