Posts: 12
Joined: Jun 2010
Aurora IL
Reputation: 0 Garage: 1
fuel pressure
I have searched for days and cant find all the answers. On a 97 5.2 ram with the plastic fuel rail there is no fuel pressure test port. I have found you need a Miller 6923 adapter to go between the fuel line and fuel rail. I have found this tool on ebay. My big question is has anyone found another way to test and can you use any fuel pressure tester on the miller adapter or do you have to use the miller c-4799-b guage that miller and the tsb speak of. I have a bad miss/backfire only at 80% to WOT at 4000 rpm and yes it is only at 80%+ throttle. I have tested everything and the plug wire routing is per the tsb.