2005 R53 JCW. Ran fine two months ago.....battery died and didn't replace for 3 months. Just got around to replacing it but car will just turn over and over....no sign of firing. Suggestions? Fuel pump? Any input is appreciated

 

Highly recommend hooking the car up to a laptop and using ISTA to diagnose before throwing parts at it. Could be your immobilizer not aligned anymore, in which that would need to be aligned again or bypassed completely.

If not EWS system, could be Crank Position Sensor. But i wouldn't worry about that until the immobilizer / EWS has been cleared. If the EWS is your issue there is ways to align it again yourself, if you dont feel like dealing with software and potentially aligning the EWS yourself RPM Motorsports in BC, Canada will bypass the EWS for you. You simply send them your ECU and EWS to be aligned.