98 Intrepid has 2 new computers fuel pump timing chain installed within the past month The car starts but computer turns off after 2-3 secs not even garage or Dodge dealer can fix this can anyone help?

Answer 1

I had a 98 Dodge Durango do this, turned out to be the factory car alarm was shutting the engine down because it thought it was being stolen.

Too bad you went through 2 computers & timing chain. That was not the problem. What is happening is there is corrosion build up on the fusible link which is located exiting the relay box under the hood. The fusible link is the "go-between" from the relay box to the computer. (Most mechanics overlook this fact in Mopar engines. That's why the Dealership couldn't find the problem.) When the fusible link wears out, it sends insufficient power to the computer and the engine shutdown relay engages and shuts the entire system down in order to protect the electrical system from damage. Either replace this fusible link or bypass it altogether. You're looking at about ten dollars for the part and ten minutes to change it...now you can be ticked over the money you've spent so far.

Answer 2

If it starts and shuts off in two seconds, there is a failure in the theft or chip key systems. Possible causes include a failure in the communications between computers on the vehicle.