good tip Karl!
Nah, nobody is against ya Karl, no more so than anyone else.
you have a re-badged Ford product, it has issues that need fixed, that's all...I learned long ago,
to seek input from those most experienced w/ whatever it may be. I and others here feel for ya, but I think it would be good for a Ford tech or someone w/ lots of exp. w/ the Mazda to check it out.
Kinda like Dentistry...Hey, I brush and waterpik my own teeth...but I don't wanna do my own fillings, even though I have a Dremel and JB Weld!!
Being a Gadgetman means learning- you and I and others here have done lots of that. Hang in there, buddy, this stubborn issue sucks- but there's worse stuff in life. I nut up pretty bad w/ car problems, so I understand, believe me. Even if you wind up gittin' shed of this truck, you can apply all you've learned in this journey on the next ride. Plus I still bet-if this idle issue gets fixed, the Mazda can still shine.
either way you know a lot more than when you started, see?
OK I'll stop pourin' honey on ya, I've gone waay off the MPGR topic!
Tracy G