Hey guys and gals.. i'm having some probs with my 99 (2.4) ld9 and i was wondering i was going along just fine and then it started running a little ruff...i pulled into a parkin spot and it was ideling really ruff..i shut it up and whent inside to get what i needed came back out and it started but cut off soon after..it will start if you let it sit but not for long.. i've checked the spark plugs and they seem to be fine..i replaced them about 2k miles ago..it just started all of a sudden so i don't know what to think..i thought i was out of gas at first but that wasnt the case either...just wondering if you guys have any input...thanks... also i have a actron scan tool that i'm gonna go scan it with maybe that will show something.. thanks again.

First of all do you have Check engine light on?. How long has it been since you have replaced fuel filter / air filter, Or throttle body has been cleaned?.

if CEL is not on the problem is probably not something major. clogged fuel and air filters, worn plugs/wires/coils (if or when replacing make sure all are delco). if all of these are ok maybe check fuel pump, fuel pressure regulator, ignition system, crank sensor (unlikely but still), maybe bad injector.