Hey guys, I'm new too the form and can't find any info in this at all anywhere. ​​​I have a M/T 2013 scion TC and it idles extremely low, and when I put the clutch in it stalls. I have replaced the Plugs, coils, air filter, MAF, fuel filter, even cleaned out the throttle body a few times and yet the problem still happens! Does anybody have any tips or information?

 

Sounds like a vacuum leak. Do you have any modifications and have you checked the PCV valve / hose? Haven't seen any failures of them on this platform, but failing PCV's and hoses would cause the same issue you're talking about on my previous platform all the time.

These cars do idle weird, but it should not be dying. Hope you can figure it out.