Focus elevation problems
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Elder User
Joined: Feb 2004
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From: Oregon
Focus elevation problems
In 2004, my sister in law bought a new Focus in oregon. Now she's stationed in Colorado. She has noticed a huge power loss since moving there. Ford told her there was nothing they could do about it. BS! What should/can we do?
Aren't ECM's supposed to adjust to higher altitudes to compensate for less air?
If it helps, another family member has a Mazda tribute which broke down for a similar reason - something about the computer not adjusting the fuel/air mixture.
It's a fully loaded 5 door wagon, not the long one.
Aren't ECM's supposed to adjust to higher altitudes to compensate for less air?
If it helps, another family member has a Mazda tribute which broke down for a similar reason - something about the computer not adjusting the fuel/air mixture.
It's a fully loaded 5 door wagon, not the long one.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
Ford told her there was nothing they could do about it. BS! What should/can we do?
The ECM *is* adjusting for the altitude. It's doing exactly what it's supposed to be doing.
Senior User
Joined: Jan 2007
Posts: 131
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From: Williamsburg, VA
Originally Posted by andym
Sorry, but that's the way internal combustion engines work. There are fewer molecules of air per volume, and the engine compensates by injecting less fuel. Less air + less fuel = less power.
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
Any naturally aspirated engine relies on atmospheric pressure to push air into it- the less atmosphere above you, the less pressure pushing in, the less output. If the computer wasn't compensating, the car would run very rich, foul plugs, etc. The only thing the dealership can do is reprogram if the car has a check engine light coming on.
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