i bought this car for 600$ from a tow yard and it was running good but it needed a tune up so i put a new rotor dis. cap spark plug wires spark plugs and oil change.but it dosn't idol now!going to put new belts battery terminals battery. could it be the order of the the spark plug wires??

 

yes it very well could be or the gap on the plugs or rotor dist. cap combo