I have a 2002 dresser I got on it and it ran good for about 2 miles and the guages went crazy and it just quit fuel pump want come on and it want fire . I replaced the crank shaft sensor no luck ,replaced the fuel pump relay no luck , checked all the fuses they are all good , I can take the cover off the fuel pump relay and manually make the pump come on but still no spark . Any help would be greatly appreciated

 

Sounds like you had a power surge that took out the ECM.. Most likely cause is loose battery terminals. Does the check engine light come on for 4 seconds and go out?

 

The engin light does not come on at all

 

That is typically a sign that the ECU is dead.

 

+1

 

I fried my ECM a couple of years ago, it was a dead short from the battery to the frame. If I remember correctly it's pin 4 on the ECM that provides the ground and when that's gone it gives the same symptoms you described. Good luck brother, it will be an expensive day out.

 

Did you check the two fuses located behind the right side cover? One is for the fuel pump (15 amp). The other is ECM power (5 amp).

 

Good point! I seem to regularly forget to check the simple stuff first!!

 

Also if there is a tuner on it, take it off line. If you get power the tuner is bad.