The idle on my car fluctuates up and down a couple hundred rpm. I drove to the store today and turned the car off, went in then came back out. Went to start the car and it just cranked for awhile then finally started.

I'm thinking it could be the maf or injectors.

I replaced the injectors with 5.5 gen ones probably 10,000 miles ago and that fixed a rough idle problem for me before, but the car would start everytime when that was a problem.

Any help would be greatly appreciated.
Thanks!

 

same thing happend to me rough idle jumping up and down , problem was due to a Very dirty and uncleaned air filter, cleaned it with cleaning solution and oiled it up problem solved! check your air filter

 

Alright I'll check it out. Thanks!
Any other opinions?

 

Ignition coils

 

Do you know how to check them? Test for resistance or if they are getting voltage to them?