Quote:
Originally Posted by pgfpro
I would try to get your IAT temps up. Your ecu is seeing the cool temps in the factory IAT tables and adding fuel.
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I'm in the same boat with a hard frost yesterday. I tried a little plumbing change to get hot underhood air and 100% grill block yesterday morning to try and help this. It works very slowly, but after 7 miles I'm seeing 20F above ambient but it starts to climb steadly thereafter. Thirty-five mpg was seen way too often in that 7 mile stretch
Its going to take a very long insulated vent to get heat from the headers to my intake snorkle!