Fuel Issues?? - Need Help

[Steedaq]

Hi all,

I've got a 2001 GT with dual pumps and am having problems. Here's the deal:

1. I've currently have about 2 psi at the rail.
2. The fuel pumps are good.
3. The fuel pump driver module is good.
4. The sensor that's mounted on the fuel rail is working.
5. The 20 amp fuse has not blown.

The dealerships I've talked to have been of very little help. The car ran well on the way down to MPH to get it dyno tuned. The car ran great on the way back for 100 miles, and I lost all of my fuel pressure.

I'm currently at a loss...Does anybody have any suggestions?

Thanks.

 

[DBMSTNG]

let's start with the obvious question. did you check for leaks?

have you logged the fuel pump duty cycle?

are you sure nothing came loose in the tank?

has the fuel filter been changed recently?

hope those help.

 

[Steedaq]

Ok, I've got answers for those questions.

1. No leaks

2. Tim logged the fuel pump duty cycle at MPH. The pumps are new Bosch pumps used in the 03-04 Cobra.

3. Fuel pumps/hoses did not come loose.

4. I just changed the fuel filter this afternoon.

Keep 'em coming

 

[Steedaq]

Is it possible that the inertia switch went bad? It didn't need to be reset, but I'm starting to run out of ideas.

 

[chuck943]

only other thing left is CCRM,possible relay is sticking. If you could get it acting up again check pin 5 dg/ye wire,it is the feed to inertia switch.

 

[Steedaq]

only other thing left is CCRM,possible relay is sticking. If you could get it acting up again check pin 5 dg/ye wire,it is the feed to inertia switch.

Thanks!! I'll check it out.