Hi, I have a 1992 diamante and it starts dieing as soon as it warms up. I try starting it again and it starts fine but the dies about 5 seconds later. can anyone help?

 

I hate to be the messenger, of bad news but you are gonna need to check and/or replace the ECM (brainbox)..my 92 does about the same thing...or it is fuel pump/pressure related

 

No, it is probably the throtle body is dirty or the IAC (idle air control motor) has failed. The IAC is what controls your idle speed. If the ECU is bad you will get a check engine light. A bad IAC does not have a code.

 

first of all, check your tune up....if the problem persist, you may wanna check fuel systems ( hose's, filter, injectors. rails. pressure and pump) then your ignitions. see if you getting enough sparks from your wires.