Quote:
Originally Posted by snow_bound26
What does it have for mods?
Sounds like it's either misfiring, getting unmetered air, or has a vacuum leak. Giving the age of the car possibly all of them. Do the following:
Replace your plugs and make sure they are gapped properly
Check your turbo inlet for tears. If still OEM, replace as these are known to become brittle with age
Replace MAF sensor
Clean throttle body
Check coil packs for proper function
Replace vacuum lines as they are going to be brittle at this age
If it has a rough or inconsistent idle, clean IACV
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Solid advice ^^^ But also give us more info on the car and any kind of maintenance history.