my car at idle has a slight miss.. is this common or do you guys have any idea what this may be i have new spark plugs in it. it has done it since i have owned it over a year ago but wondering if this is hindering the performance of may car?

 

Mine does the same at idle most of the time. Sometimes the RPM needle can dance around from 500-800 rpm, never stalls though. I think its pretty common, the last owner told me it happens to ALL mustangs with any aftermarket intake. Something about the motor sucking alot of oil from the filters

 

it shouldn't be happening. if you're sucking oil, you should clean your MAF with some electrical contact cleaner. my car runs smooth at idle. you think maybe ford screwed up on my motor and got it to run smoothly?

 

all mustangs do that but about the intake its not true on my car it stopped doing it as much when i put the intake on...

my old one used to stall sometimes, i dont think there is a way to fix that lol

 

i had a problem with it even before i bought the cai?

 

anyone any other ideas i should check?

 

clean your IAC that is what contorls your cars idle

 

ill try that as well...

 

x2 I don't have this problem.

 

this is NOT normal, I car ideling between 500 and 800 RPMs is not normal. My car idles perfectly at 750 rpms. If your taking in a lot of oil, consider a PCV catch can