I haven't given it another attempt yet. Once the temp gets above freezing for a full day I'll try getting the TB off again.
Yes, the engine does bog down when you use a carb cleaner, etc. I use Amsoil Power foam (similar to sea foam but the power foam can be sprayed in through the intake). A full can is one application and if you spray it into the throttle body too fast with the vehicle at idle the engine will stall. If you moderate the spray after the can is empty, I shut the engine off for about ten minutes to let the stuff do its job. I then start the engine and lot of white smoke follows for a solid 2-3minutes and dissipates. I take it for a drive and within two days I'll change the oil.
Electronic TB's can be temperamental but I've never had any issues. I'm not one to play with anything on a throttle body while it's still connected, be it with bolts, wires, or both. In all cases it's best to remove the throttle body and do a thorough clean.
It'll be nice once I figure a way to get the TB off my G6 GT. After seeing the oil buildup within the intake, I really want to clean that crap out.
'11 Ram SXT 4x4 quad cab - 5.7L V8; 128,200kms
'09 Malibu 2Lt 3.6L - 140,000kms purchased 1 March 2019
'06 Pontiac G6 GT - 3.5L V6; 162,000kms (rear ended 15 Feb 2019, and given totalled title by insurance)