Check engine light - trouble code 111 = pass
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Check engine light - trouble code 111 = pass
I was pulling my enclosed trailer on Saturday to our hunting area and as I topped the last big hill my check engine light came on, stayed on for about 5 seconds then went out. A few minutes later it did it again, all told it came on maybe 3-4 times but would go back out within 5-10 seconds.
Then on Tuesday as we were driving home it did it again but this time the road was flat. It would come on and go out like before but this time it stayed after about cycling 3-4 times.
I ran an engine diagnostic on it and it came back with a pass code. One thing I did notice when the light came on, I was getting low on gas on the front tank but I still had enough gas to show on the gauge. I swapped over to the rear tank but the light stayed on all the way home.
Any thoughts/ideas?
Then on Tuesday as we were driving home it did it again but this time the road was flat. It would come on and go out like before but this time it stayed after about cycling 3-4 times.
I ran an engine diagnostic on it and it came back with a pass code. One thing I did notice when the light came on, I was getting low on gas on the front tank but I still had enough gas to show on the gauge. I swapped over to the rear tank but the light stayed on all the way home.
Any thoughts/ideas?
Lead Driver
Joined: Aug 2006
Posts: 5,670
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From: Sand Lake, MI
You said got system pass 111, safe assume that's for KOEO and Cm both?
Your light going on off tend suggest two possible issues because it does go out, emissions such as egr not opening not detected or perhaps a 02 sensor type of issue.
If getting system pass, no stored CM codes with a trouble light going on and off? might take moment pull computer, take its cover off and look it over real close.
CM result should have followed KOEO self test.
Your light going on off tend suggest two possible issues because it does go out, emissions such as egr not opening not detected or perhaps a 02 sensor type of issue.
If getting system pass, no stored CM codes with a trouble light going on and off? might take moment pull computer, take its cover off and look it over real close.
CM result should have followed KOEO self test.
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I did the test according to the link from this site and it came back clean for both KOEO and CM. I was thinking it was an emissions problem as well since it was cycling on and off. All gauges showed nothing out of the norm either.
Lead Driver
Joined: Aug 2006
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From: Sand Lake, MI
Here's the instructions,
Ford Fuel Injection » KOER Test
If you're not familiar with it already, fairly sure you'll find its a handy site too.
Ford Fuel Injection » KOER Test
If you're not familiar with it already, fairly sure you'll find its a handy site too.
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Lead Driver
Joined: Aug 2006
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From: Sand Lake, MI
Oh and while I do agree with running the KOER test, the light came on then back off. It should have at least one "CM" code stored, code for the problem that triggered the light to come on to start with.
Any chance you cleared the codes in the process running the self test, started the KOEO self test but lost ground a moment tester screwed up dead battery etc, stopping the test then regrouped started over again?
If something like that happen, that would explain why no CM codes where found when should have been at least one.
Any chance you cleared the codes in the process running the self test, started the KOEO self test but lost ground a moment tester screwed up dead battery etc, stopping the test then regrouped started over again?
If something like that happen, that would explain why no CM codes where found when should have been at least one.
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The first time I tested it I had my heater switch on so I had to shut it down. After I turned off the heater I did the KOEO again and it came up with the 111 code then it went into the CM mode and I got the same 111 code number.
I have about a 5 foot piece of wire with an aligator clip on it I use to do the test with but it never lost contact during the test.
I have about a 5 foot piece of wire with an aligator clip on it I use to do the test with but it never lost contact during the test.
Fleet Owner
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From: Easton,Ks
The only time that I know of that the MIL will come on and not leave any codes in CM is if the computer keeps getting reinitialize.
This can happen if there is a short in the wiring harness somewhere.
This can happen if there is a short in the wiring harness somewhere.
Lead Driver
Joined: Aug 2006
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From: Sand Lake, MI
The first time I tested it I had my heater switch on so I had to shut it down. After I turned off the heater I did the KOEO again and it came up with the 111 code then it went into the CM mode and I got the same 111 code number.
I have about a 5 foot piece of wire with an aligator clip on it I use to do the test with but it never lost contact during the test.
I have about a 5 foot piece of wire with an aligator clip on it I use to do the test with but it never lost contact during the test.
Or just allow it finish then turn off the heater, run the test over again?
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When I ran the test initially, I let it run through then went inside the house to see what the code was and it was the heater/ac switch being on, that was the only code. SO I went back outside and ran the test again and it came back clean.
I was unable to run the KOER test because I recieved some bad news from back east and my efforts are now focused elsewhere but when I return i'll run the KOER and see if I get any codes. Appreciate your help too.
I was unable to run the KOER test because I recieved some bad news from back east and my efforts are now focused elsewhere but when I return i'll run the KOER and see if I get any codes. Appreciate your help too.
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