Bad DME or reference/speed sensor?

[nynor]

stop talking about it and give it a try.

[Arizona_928]

Originally Posted by josh565

From what I understand though is that if the DME relay was bad, then the fuel pump would not turn on when the key is in the on state. As for my situation, it does turn on when I turn the key though...

Ohm out the relay? Have you tried bypassing the relay and jumping the terminals?!

[jeffrsmith]

Originally Posted by josh565

From what I understand though is that if the DME relay was bad, then the fuel pump would not turn on when the key is in the on state. As for my situation, it does turn on when I turn the key though...

I doubt you are hearing the fuel pump with key on, unless you jumper the DME relay the fuel pump will not come on unless the DME senses that the engine is turning over at least 300 rpm.

You may want to try wiggling the connectors for the Speed and Reference sensors and give it a try, the connector can sometimes cause issues. With heat and age it is not uncommon for problems to arise in the wires/connectors for these sensors.

My vote is that your speed and reference sensors are flaky and should be replaced. You say the car is an '84, do you have any records from the POs that show they have been previously replaced?

[josh565]

Well I fixed it!!! Yet I feel like an idiot for why it crapped out on me. Charging new battery in the car and accidently started the car with the charger on the battery. Blew a fuse in the charger and just replaced that. Came back the next day to a not starting car (blown DME fuse). And if I recall I do remember smelling burnt circuit but didnt even thing twice about it... Anywho, never overlook the small things on a project guys and gals.

[JonA]

Don't feel bad. All of us have been there. The thing we have to keep reminding ourselves is that when troubleshooting, start with the simple stuff.

Jon