Check Engine Light
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Freshman User
Joined: Aug 2005
Posts: 25
Likes: 0
From: San Cristobal, NM
Check Engine Light
I have a '95 F250, 5-speed, 460 with low miles (44,000). I live at 7600' and whenever I go to lower altitudes, say 5000', and am going 65 mph or faster my check engine light comes on. If I turn the engine off and restart the light stays off until I hit 65 again. It never happens at 7000' + no matter how fast I go. The outside temperature is also a factor as it has to be 70 degrees of warmer. I'm guessing oxygen sensor - any thoughts? Thanks for the help.
