Erratic Idling please help

[SVG210]

I think theres something wrong my 2003 Suburban, when i am on a stop light or have it on parked with the engine running. It start idling funnly like if it wasnt to shut off, then when i accelrate it feels like its forcing itself. I am leaning towards the spark plug wires, but i wanted an opinion out of you guys first. what would your recomend? btw no egine light so it might be a minor problem.

[Nitrous]

It's too hard to tell without a scan and log. Could be fuel related or spark, how many miles are on the 03?

[Not 2 Slow]

I think theres something wrong my 2003 Suburban, when i am on a stop light or have it on parked with the engine running. It start idling funnly like if it wasnt to shut off, then when i accelrate it feels like its forcing itself. I am leaning towards the spark plug wires, but i wanted an opinion out of you guys first. what would your recomend? btw no egine light so it might be a minor problem.

Try cleaning your iac valve

[SVG210]

thx, ill think ill look at the IAC first but since the check engine light doest come on then it might aslo be due for a tune up, 73000 miles on it.