Quote:
Originally Posted by switchlanez
I believe this is a hardware/software interoperability issue [this is the engineer in me talking]. Tolerances are tight making this engine... touchy. You can only get the stacked tolerances of the oil journals, cams, casting, etc. to be so good yet always have a 1% +/- x-factor fail rate. Subaru/Scion PR wants you to believe it's purely software; in a way they can be right. When SW is controlling HW, there's no hard line separating which side the culprit lies. Components in the cam timing system would have to be revamped for all new parts/tolerances and would require retooling at engine assembly. Again, I believe they were aware early on ith the problematic prototypes and mitigated it from the hardware side the best they could before production rolled out. Now they leave it up to SW catch and clean up any straggling HW.
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Looks like the good folks at Scion agree with you!
http://www.ft86club.com/forums/showthread.php?t=19121