Anti theft system problem

Sam98 said:

The PCM should turn the pump on for a couple of seconds to pressurize the line then shut it off. When you said it doesn't seem to pressurize are you guessing or do you know the fuel system isn't pressurizing? If the PCM senses that the fuel system isn't pressurizing like it should, it will disable the car the same way it does when the PATS doesn't prove out. Maybe your fuel pump is shot. Otherwise, it sounds like the PCM...do you have a chip on there? Mine will do that if I have my tweecer in the wrong position, so a partly seated chip should be able to cause similar symptoms. If the problem were with your PATS module the fuel pump would still function normally. The theft light would come on, then start flashing rapidly, and you can crank the car all day but it would never start, and the fuel pump would never turn back on without cycling the key.

Click to expand...