This does pose a concern to me now this issue is mentioned. As seen in the pic, mine is a few more inches away from the exhaust ports than the original config. Since day 1 the MIL would come on if I hit fuel cut right after startup - as if it had to be preheated before it would work properly. I've gotten use to the quirk and hadn't paid it any attention for some time, but after a quarter million miles, she's starting to jerk. That's probably a reasonable lifespan. Unfortunately, a sensor costs as much as the engine so it won't be getting replaced anytime soon.
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