Has your PCV valve been changed? Is it the factory unit?
Do you have an oil catch can inline with the PCV Valve?
1) No, I have not changed my PCV valve.
2) Yes, I believe it's the factory PCV Valve.
3) Yes, I have installed an oil catch can between the PCV and the TB (I use this exact filter
https://imgs.inkfrog.com/pix/idrack/oilfilter.jpg)
White smoke is typically coolant. Blue / Light blue / gray smoke is typically oil.
What is your throttle position and sequence just before you see the smoke?
Rolling down the interstate, back off the throttle and see the smoke?
Accelerating hard from a stop and see the smoke?
Shut down for 30 minutes and smoke hard upon start-up?
1) Was mostly white and grey, I haven't noticed any blue hues but I also haven't been anywhere but in the drivers seat when it has blown smoke (almost identical to what it looks like when my engine is burning off seafoam from cleaning vacuum lines)
2) Throttle position and sequence? -- I'm not sure I understand this question fully, but I'm accelerating from a stoplight at a normal pace, not gunning it and not babying it.
3) Letting off the throttle on interstate -- When I back off the throttle, I don't see any smoke at all. If there is smoke coming out, it's not enough for me to see it from looking over my shoulder while on the interstate.
4) Accelerating from a stop -- Yes, this is the only time I've seen this happen. Prior to yesterday, the only time I ever saw smoke billow out like this was after driving on the interstate for many miles and stopping for gas. When start up my car after filling, no smoke, but as soon as I press on the gas pedal to leave the gas station or parking lot, that's when the smoke billows for a good 3-5 seconds. Thick white/grey smoke that doesn't dissipate immediately.
5) My car never smokes upon startup of the car. Even after the two instances yesterday at 3 stoplights in a row over 2 miles. I turned off my engine at the 4th stoplight and restarted my car and had no smoke. Then I floored my car for a good 3/4 of a mile and then parked it for 20 min while in the grocery store. When I came out, no smoke upon startup and i haven't had any smoke since.
Why did you clean your TB? Did you remove it to do that? Did you get all your hoses hooked back up properly?
Did you crack any vacuum lines during the process of cleaning the TB?
I was getting an intermittent EGR "A" Insufficient Flow CEL error and removed the EGR valve to clean it. While I was doing that, I cleaned the TB via various intake ports on the TB.
I did not remove my TB while cleaning it. I removed the air intake hose, PCV inlet hose, brake booster intake hose, removed the EGR valve and EGR temp sensor and put a long spray nozzle into both of those holes as far as I could and sprayed seafoam and TB cleaner and then let it sit for 8-days while I was on vacation (in addition to submerging my EGR valve and other diaphragm in seafoam for 8-days).
When I returned from vacation, I reassembled the EGR system and did further seafoam and TB cleaning by spraying it into the TB with the engine on until it cut out. After it cut, I continued cleaning everything and tried starting the engine, it took a lonnggggg time to start and was making a nasty grinding noise for much of the start-attempts while cranking. I then used an air hose to shoot compressed air into the ports I sprayed the TB cleaner and seafoam into thinking that I flooded the engine with cleaner and needed to air it out. I blew air into it via the different intake ports for 15m and then let the vehicle sit with the air cleaner hose disconnected for 2hrs. After two hours of sitting, I tried starting again and got the same grinding noise when trying to start (which later I realized was probably due to nearly vapor-locking my engine). After a good 6-7 min of on/off trying to turn over the engine, I finally got it started and smoke billowed out of the exhaust for a while and then it returned to a smooth idle per usual. That was last Sunday the 30th and there hadn't been any smoke coming from my exhaust at all since except for at those three stoplights last night.
Since then, I've been paying more attention to my oil pressure meter on my dash and it seems to hover lower than I remember it being before.
The photo below was immediately after starting my engine following it sitting in 100 degree weather for 1hr - No smoke upon startup
This was while accelerating out of my neighborhood: 1400rpm no smoke
Still accelerating: 2400rpm no smoke
Cruising at 40mph downhill: No smoke
Stopped and idling at stoplight 10sec after the photo above: No smoke while decelerating or after accelerating from the stoplight.