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jd2002wtf 04-21-2013 09:54 AM

engine code help
Hi all,2002 4.7 ram
recently had to rebuild my motor and now its throwing codes,any advice welcome

P0551,power steering pressure sensor circuit range performance?
The power steering sounds like its low on fluid(moaning on turning)
Its full.

P0445,evap emission cont sys purge control valve circuit shorted?
Any advice welcome.

No clue

SuperiorStyles 04-21-2013 05:12 PM

Both of those parts need to be replaced. There's no but or explanation really. The P1683 its an internal PCM failure so what you wanna do before you replace anything is Disconnect your battery positive and negative wait then minutes and with everything disconnect turn your key to the on position for about a minute then back off and reconnect the battery and take a ride for at least 20 mins to let the pcm relearn and see if the problem continues with the pcm. If the problem continue start looking into getting a new pcm or used depending on your budget. hope it helps

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