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2.3L ('02-'11) How long does it take for codes to show up again after clearing it


tatermatt90

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Been chasing down codes on my ranger. P20004 and p0171. I tried somethings to fix it and cleared the codes with my scanner. How much driving does it take for the codes to come back on if the problem is still there ?
 


Fredness

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Some quicker than others.
If it is a hard fail, they are immediate.
If it is situational (misfire under load), you would have to duplicate the situation for the code to show up.
 

sgtsandman

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What he said. It depends on what is causing the code.
 

Dirtman

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P2004 would come back pretty much instantly since the system will try to adjust the runners on startup and realize right away they are stuck. P0171 "might" take a couple short trips before returning.

Those 2 codes tell me you had a broken vacuum line to the IMRC solenoid...
 

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