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Update. decided to pull out the orange canister and clean it. went to the local auto shop and told them what iI was doing. the guy recommended a can of MAF sensor cleaner. $25 later I get home and pull out canister. was easy after I removed the support bar going across to the manifold. I squirted fluid thru from the narrow end where the rubber pipe goes. You would not believe the amount of crud that came out. I then blew some compressed air thru it to dry out and refitted it. Will see how it goes but looking good.
I did it again over the sink and even more came out.