engine check came on after E85 gas - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 11-13-2005
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engine check came on after E85 gas

I put E85 gas (85 percent of ethanol and 15 perceent of unleaded) in my 1999 Ford Ranger with 3.0 liter FFV ( "V" in VIN number 8 charater) and ran stronger but the mpg dropped to 9.5 and "engine check" light came on, AutoZone plugged in my Ranger with code scanner. it show 171 and 174 ( too lean in bank one and too lean in bank two) I already replaced fuel filter in just one week before I first put E85 gas in. I wonder if poor mpg could cause by bad DPFE sensor or bad fuel sensor in tank ( if I'm correct that FFV should have a fuel sensor? ) I wonder if fuel sensor reading E85 came in the tank then it will send a signal to PCM, so the PCM will control air & gas mixture on fuel injector and control the timing to help to stop the lean and mpg got better. am I right? I know E85 is 20 percent less mpg but should not dropped by 50 percents! ang suggest? it would be helpful. John
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Old 11-13-2005
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dont you already have a post about this? please dont make 2 just need one most all of us use the active topic feature in the top bar and brings up all the new post so we will see it...
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Old 11-13-2005
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Well I thought if I put my message on V6 Tech board, maybe I will got more respond, Iam new at this since last night. can I delete my extra message? John
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Old 11-13-2005
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no you cant i know your new i was just letting you know a mod will take care of moving the old one to the 3.0L forum and deleting this one dont worry about it just gives you something to learn from no hard feelings
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