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Old 02-02-2013, 05:39 PM   #1
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Check engine light

The check engine light came on. My ford racing tuner said "crankshaft position system variation not learned" Does anybody know what that means? Is it serious or can I just clear the DTC code?
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Old 02-02-2013, 05:45 PM   #2
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You need to do the crank relearn which you can actually do with your pro cal. Clearing the code will result in it returning more than likely. But the bigger question is why did it come on? Any recent work done like a clutch or something along those lines?
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Old 02-02-2013, 05:51 PM   #3
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No recent work. How do I relearn with the pro cal tuner?
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Old 02-02-2013, 05:57 PM   #4
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With your pro cal there is a setting for relearn. You hit it and rev up the motor past 3500 rpm and it should automatically turn off your light. It's pretty easy, just look for it on the pro cal.
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Old 02-02-2013, 06:18 PM   #5
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I don't see that option. Is it possible I need to update the tuner?
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Old 02-02-2013, 06:20 PM   #6
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No there is no update on a pro cal. Just look around it, it's there.
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Old 02-02-2013, 06:55 PM   #7
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Found it but the light is still on. Anything else I can do?
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Old 02-02-2013, 07:42 PM   #8
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Did you go through the procedure?
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Old 02-02-2013, 07:45 PM   #9
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I did
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Old 02-02-2013, 08:50 PM   #10
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Got it, thanks
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Old 02-03-2013, 06:18 AM   #11
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Good to hear.
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