Checked, checked and checked again for hoses that are not seated. That is not a sure thing of course!

I'm still leaning toward the MAF because that is the only thing that was moved when I changed the air filter. Not to mention the leaves that were in there. I made my smoke machine yesterday. Used an old quart polyurethane can. I'm hoping to try it on the car today. I'm thinking of trying a cigar inside the can as the smoke source. I tried a rag soaked in mineral spirits and that didn't smoke too much. Then with heating oil (which is pretty much just kerosene) and that didn't smoke well either. Unfortunately, when I was testing the machine I used just a hose and was blowing in it - then inhaled by mistake when my mouth was a few inches away from the hose! Yikes that was stupid!