My car has a high idle around 2500rpms. It all started when I took the throttle body off to clean. When I put it back on my idle was high. I've taken it to 2 different garages and still cant figure out what's wrong. I've bought a brand new throttle body and had a scan tool to try to relearn idle but still high. There is no vaccum leaks and the MAP and MAF sensors are reading good. Any ideas? The throttle body is the same on my car as it is for a Pontiac G6, so we noticed when you shut the Pontiac G6 off the butterfly valve on throttle body closes all the way. When we shut my car off, the butterfly valve stays partially open. Both garages have ran out of ideas. Please help with suggestions. Thanks
Feb 22, 2016 at 5:40 PM
