Leave em alone. I would be more concerned with 2002 injectors if they have never been touched.

Delete

Ditto

???

I'd leave them alone with such low hours. They do have a weak spring pressure but they work fine with a stock cam. Plus they have all that funny rotator stuff from the factory.

I agree with others on getting the injectors cleaned. And perhaps replace the IAC valves so you don't smoke a PCM555!

Clogged Injectors