3.0 FFV check engine light
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New User
Joined: Oct 2001
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3.0 FFV check engine light
i have a 99 ranger with 3.0L flex fuel engine.
the check engine light won't go off.
OBD-II codes say "fuel too lean on banks one and two"
truck has 168,000 miles so i expect stuff to break, like that stupid airbag cutoff switch ($65). but i don't know what on earth to do about that. not like the old days when you just take a screwdriver to the carb.
the check engine light won't go off.
OBD-II codes say "fuel too lean on banks one and two"
truck has 168,000 miles so i expect stuff to break, like that stupid airbag cutoff switch ($65). but i don't know what on earth to do about that. not like the old days when you just take a screwdriver to the carb.
Posting Legend
Joined: Sep 2001
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3.0 FFV check engine light
Looks like nobody here knows much about flex fuel engines.
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Elder User
Joined: Aug 2002
Posts: 773
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From: VA/USA
3.0 FFV check engine light
I have the same `99, 3.0 FFV - and I couldn't give you a clue (though it sounds like, and forgive me, I'm just on my FIRST cup of coffee - fuel inject. issue) you might try to track down Ken00 or check over in the "Fuel" forum - good luck . . .
Elder User
Joined: May 2002
Posts: 818
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From: northeastern ohio
3.0 FFV check engine light
When was the last time you replaced the O2 Sensors.
That sounds like a classic problem. I think you are susposed to replace them like every 60000 miles anyway.
If you have a vacuum leak it might be doing wierd crap like that too... unmetered air is bad...
Rand
That sounds like a classic problem. I think you are susposed to replace them like every 60000 miles anyway.
If you have a vacuum leak it might be doing wierd crap like that too... unmetered air is bad...
Rand
Freshman User
Joined: Feb 2002
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3.0 FFV check engine light
Check the MAF...i had the same problem..same codes..truck lacked power..unplugged the MAF..and purrs like a kitten..I have read that when the ECU reports error of both banks running lean..it is rarely the 02 sensors (since you would need multiple simultaneous failures)..anyway..MAF for me..good luck!!
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From: Columbus, OH
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Elder User
Joined: Aug 2002
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From: VA/USA
3.0 FFV check engine light
DPFE (differential-pressure-feedback\sensor) is very common - do you tend to fill fuel more than a gallon or so past the pump clicking (cutting\shutting) off automatically? I did, and a mechanic told me that could cause it - fumes backing up from the charcoal-canister (from over-pressurizing the fuel tank\system)cause corrosion at the hose-sensor connection - at least that is my recall of the explanation.
It "appears" to be an easy fix (location very accessible) and cost "around" $60.
Mine occurred at around 40-45,000 miles, comes back as an "EGR"-related prob. but was told and have read that that is very often the case\cause (root) of the prob.
Best to have it properly tested\checked though before buying and changing parts if possible.
Also there have been TSB's on this - so maybe Ford ought to eat a portion of this cost\expense.
Best of luck, Glenn . . .
It "appears" to be an easy fix (location very accessible) and cost "around" $60.
Mine occurred at around 40-45,000 miles, comes back as an "EGR"-related prob. but was told and have read that that is very often the case\cause (root) of the prob.
Best to have it properly tested\checked though before buying and changing parts if possible.
Also there have been TSB's on this - so maybe Ford ought to eat a portion of this cost\expense.
Best of luck, Glenn . . .
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Post Fiend
Joined: Dec 2001
Posts: 10,562
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From: South Jersey
3.0 FFV check engine light
I would be a little surprised that both O2s would go at the same time. Look for vacuum leaks, dirty MAF, exhaust leaks and dirty fuel filter/low fuel pressure. If you would like the pinpoint tests send me an email and remind me of the code numbers.
Post Fiend
Joined: Dec 2001
Posts: 10,562
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From: South Jersey
3.0 FFV check engine light
>My check engine light went on last night the truck only has
>33000 miles on, any idea what anyone thinks that it may be?
If your still under warranty let the dealer fix it, if not you need to have the codes pulled, don't start replacing parts without knowing whats wrong.
>33000 miles on, any idea what anyone thinks that it may be?
If your still under warranty let the dealer fix it, if not you need to have the codes pulled, don't start replacing parts without knowing whats wrong.
Junior User
Joined: Nov 2002
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From: Norwood
3.0 FFV check engine light
hey ken00, 33,000 miles huh, that is when mine went on, and it wont shut off, going to check it out this weekend to see what could be the problem. let us know if you figure out what is wrong with it.
Post Fiend
Joined: Dec 2001
Posts: 10,562
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From: South Jersey
3.0 FFV check engine light
>hey ken00, 33,000 miles huh, that is when mine went on, and
>it wont shut off, going to check it out this weekend to see
>what could be the problem. let us know if you figure out
>what is wrong with it.
That was a quote from your post and I responded below.
>it wont shut off, going to check it out this weekend to see
>what could be the problem. let us know if you figure out
>what is wrong with it.
That was a quote from your post and I responded below.
Posting Legend
Joined: Sep 2001
Posts: 30,255
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3.0 FFV check engine light
Read post #8, if you can't see his reply you dooo have problems.
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