I HAVE A 1997 RANGE ROVER 4.6 HSE.ENGINE WILL TURN OVER AND FIRE OFF, BUT WILL NOT RUN. NOT SURE IF IT MATTERS OR NOT, BUT IT SAT FOR 9 MONTHS BEING RAN EVERY ONE IN A WHILE WITH NO GAS CAP. RAN GREAT FORABOUT A YEAR BEFORE THE DEPLOYMENT. HAD HEAD GASKET JOB DOBE WHEN CAR WAS PURCHASED. SPARK PLUGS AND NEW WIRES DONE ABOUT A YEAR AND A HALF AGO.IFSOMEONE COULD PLEASE HELP, I WOULD REALLY APPRECIATE IT.....

 

Either stale gas, maybe water also got in the gas, either way I would drain the gas and if you have a fuel filter I would replace that so you don't continue to possibily mess up your injectors.