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Old 12-26-2017, 10:49 AM
 
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1. Penn state? So there is no major elevation there, to warrant lower O2 level tripping it?
2. Though I am not sure what vehicle is it, I agree that you passing some sort of electronic emission area that trips your ECM or one of the sensors. Having ECM "build up just enough data" for exact spot same time" is odds equal to 0. Improbable. That, or some sort of oxygen related vortex that trips low O2 level and causes O2 sensor or another one. Humidity actually could do same.
Either way, it's very kewl. Like that road somewhere in the US where cars roll up hill on their own.
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Old 12-26-2017, 10:53 AM
 
Location: Wichita Falls Texas
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Have their been any recent UFO sightings in the area, say in the last 5 years or so? Just saying....
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Old 12-26-2017, 11:29 AM
 
Location: East of Seattle since 1992, originally from SF Bay Area
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I had a 1994 S-10 Blazer that did the same, but it was at about 5 miles out. It turned out to be a stuck door on the air cleaner that failed to open when reaching operating temperature. A little WD-40 solved the problem.
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Old 12-26-2017, 02:24 PM
 
Location: By the sea, by the sea, by the beautiful sea
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Quote:
Originally Posted by Bummer View Post
Ya gotta love a vehicle with a few idiosyncrasies.

In Italian cars they're called 'features'.
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