Well, a couple of weeks ago I noticed that at highway speeds if I tried to accelerate quickly the car would stutter from time to time. I can "see" the stutter in the tact but can feel it (feels like a momentary loss of acceleration). When the car idles the idle is rock solid and around town driving I'm pretty sure I've never felt this (other than perhaps once or twice from a stand-still). I assumed I needed to replace the TCV and have the parts to build up the DIY verison of the IPD TCV. Well, driving into work today the ETS light came on. FYI, my MAF sensor is under 2 years old so I'm hoping that isn't the problem. Anyone have any guesses? Or steps I should try in order to figure this out? Assuming the ETS light is still on when I get home I'll read the OBD II code. Thanks in advance!

Update - I forgot that there are no codes with an ETS light. The light went off today but I'm starting to think that I need to have my ETS re-built.

 

If it's a turbo, check the big Hose on top of the radiator and make sure its connected properly. Check for any leaks in all the hoses....hope that helps....mine came loose and it did the same and actually a lot worst.