Youtube hearted comments of John h Palmer (@johnhpalmer6098).

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  2. Found out when I first got the Launch Creative 5 tool, and my first scan tool for OBDII cars ever, I found out that sometimes, the tool will lead you astray by having you chase the wrong rabbit hole(s). All it takes is one part to cause a chain reaction of other parts to not read correctly. In my case, a slightly off timed motor will do that. In 2018, my 2003 Mazda Protege 5 wagon (the Mazda 323) as it's call here in the US, popped the tension wheel spring for the timing belt one day while I was picking up the dog I was house sitting as he did a Houdini and did the "great escape" from my backyard and was picked up by a neighbor a couple blocks over and taken to the pound. He's chipped so my name was also on there as I know his owners well and they are considered family. Anyway, was en-route when the spring went spring! and embedded itself in the timing belt. Anyway, replaced the belt and spring as I had no way of knowing when the belt was last replaced, having bought the car in 2012 from the used arm of a new Honda dealer and now it's 2018 and still going... Anyway, it all boiled down to a slight mistiming of the exhaust cam I think it was that caused things like the TRIM's to not modulate, the MAF and later the MAP sensors to not "work", etc, all went back to that slight mistiming. Even the idle was like poo, but rev it up, it ran fine but all cleared up when I got the cams back spot on with the crank and all is well in Mazda land. Thankfully, this motor was the legendary, though peaky FS-DE non interference motor. Since I live on the west coast of the US, unless right on the coast or constantly driving through the mountains during winter, rust is generally not an issue here so one can still drive 20+ year old cars without having rust issues. Anyway, still drive that car and now has almost 195K+ miles on it and it still chugs down the road fine.
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