FF Check Engine Light
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New User
Joined: Jul 2018
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FF Check Engine Light
I have a 2000 Ranger with 3 liter flex fuel engine. When I use e85 the check engine light comes on. When I switch to regular 87 fuel the check engine light goes out. Has anyone else experienced this? Thanks in advance for your help!
Moderator
Joined: Jan 2004
Posts: 13,851
Likes: 111
From: SW Va
Welcome to FTE.
A number of things could be in play here, so use, borrow, or come by the inexpensive ELM scan tool & running FORScan on the viewing device of your choice as discussed here, https://www.ford-trucks.com/forums/1...-scantool.html
This combo can execute a in depth query of All of the vehicle computer/controllers for trouble code clues & post All code Numbers, as they can help focus a trouble shoot.
A number of things could be in play here, so use, borrow, or come by the inexpensive ELM scan tool & running FORScan on the viewing device of your choice as discussed here, https://www.ford-trucks.com/forums/1...-scantool.html
This combo can execute a in depth query of All of the vehicle computer/controllers for trouble code clues & post All code Numbers, as they can help focus a trouble shoot.
Elder User
Joined: Dec 2013
Posts: 655
Likes: 0
From: Kansas City, KS
I question whether E85 is really safe for a vehicle that "old", but I don't know that much about flex fuel vehicles. I'd probably just quit using E85, myself, but that doesn't really help you.
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