So today I went in my car and started it because its been sitting in my driveway for the past 3 weeks because

1. no license
2. still havent got my title so I can register for my license tag
3. the front end is in pieces because I am rewiring and changing out the headlights

But anyways, I noticed when I rev'd it in neutral to about 2k rpm's it drops to ALMOST 100-200k-ish rpm's and starts to stutter a bit then catches up to my normal idle rpm's

another thing is when I use my power windows or something like that my rpm's drop and the car slightly stutters

is this normal?

 

mine stutters while using a/c, p/s, or windows while the car is idle, I think its normal, sorry but I have no clue about that other problem

 

have you searched?? you will find plenty of information for the same problem

 

I tried searching but I couldn't find any information, if you could redirect me to a good explaination thread then i'll greatly appreciate it.

 

Mine does the same at idle; it rests at the normal 800 rpm's, but when I roll the windows up/down or the sunroof, the idle drops and slightly stutters. I don't have any info to help, just letting you know you're not alone. The only thing I can guess is due to my battery ground wires that are stripped and unraveling.

 

or maybe it just loses power, like when ur driving and the a/c is on, just a theory i guess, im a newbe