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Code reader wont pull codes

Old Jul 6, 2019 | 08:28 PM
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Code reader wont pull codes

My 2003 f150 with a 4.6 wont light up the code reader and ive tried 2 different ones.Then i tried the trip reset by holding it and none of the codes i see aren't listed

 
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Old Jul 6, 2019 | 10:43 PM
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there is a fuses that also controls the cigarette lighter ( and the code plug power)............. look in the operators book for which fuse is blown.
 
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Old Jul 7, 2019 | 12:39 AM
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What you see from the Dash is in position just before 'GAGE'.
It was reserved for codes PA to PEx.
The 255 you see is a fill code and is an Octal number that would have been converted to Decimal to be more understandable, if it were used.
Example the FUEL position.
A ...54 would represent a low fuel level. A .178 would represent the 3/4 fuel level etc. in an Octal number base of 0 to 255.
You would need a Doc to interpret the dash data.
Check the fuse and DLC socket pin 16 for battery and 4, 5 for ground..
Good luck.
 
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Old Jul 7, 2019 | 08:24 AM
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My cigarette lighter on the left works and changed the one on the right.The code reader works and i got a code of p302 but the Triton has a bad problem of spark plugs breaking off and Orileys sells a kit to remove them but im not doing it
 
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Old Jul 7, 2019 | 11:42 AM
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The 4.6 motor in your year range has NO bad problem of spark plug breaking... That is bad information... You can change them out in an hour.
 
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Old Jul 7, 2019 | 01:09 PM
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Steve is 100% correct as usual.
The only spark plug problem on your truck is that you haven't changed them yet.
 
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