I had a problem with crossfire a few weeks ago and had the stealership run the codes for me. They said it was the fuel pump....so I put it in myself along with a new filter and cps. Also fixed the rcm..... so it cranks over but engine will not start....I'm thinkng its the battery under the hood...not in the key...red light on the fob lights up just fine..and keyless is fine also....I'm just stumped with this one!!

 

Do you actually hear the fuel pump run when you turn the key to "on" (but not to "start")?

Did they give you a readout of just what the code(s) were?

 

Yes the fuel pump turns on.....checked the fuek rail and fuel came out..and no they sure didn't give me the code....I hooked my scanner and it isn't showing any codes...did show that fuel circuit 1&2 are open...

 

Try adding a couple gallons of gas my wife's 05 Ltd conv with 70,000k plus just stopped the other day would crank but would not start towed to local dealer( a good one by the way) and said it was the fuel pump installed one and still no go gas guage was showing quarter tank but empty turns out it was a faulty fuel gague sensor driving it now with no problem just watching milage as guage when to refill been six weeks though waiting on knew fuel sensor guage

 

I would take another look at the rcm unless you used a magnifying glass to insure you actually fixed it. Tricky soldering those joints...makes sure you have a connection on the circuit board.....