New throttle body installed

[Alpine TSi]

Originally Posted by DSMkel

OK....idle problem is back. DERNIT!

Only sometimes though. Checked for boost/vaccum leak today and found none. Still have a temp sensor code.....could that be the problem? I have this little coolant leak which I was thinkin might allow enough air into the system to make the coolant boil out. That in turn might be screwin with the temp sensor which is sending a reading to the ECU and throwin the check engine light and also makin it idle according to the temp readings. Does this sound possible or am I completely off my rocker?

Well the CTS will effect idle, so yes it is possible. But I would concentrate on getting the leak fixed, then get a new CTS.