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Discussion Starter · #1 ·
Installed new injectors 2 weeks ago because i was told i needed new injectors...today while driving at around 45mph my grid heater light came on and then i lost power for about 2 seconds and then the check engine light came on....P0251 code.....Any help would be great.
 

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sounds like your fca disconnect your fca and see if it maxes your rail pressure. I had this problem to. The code either relates to weakening cp3 or faulty fca.
 

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Discussion Starter · #4 ·
So i replaced the FCA and my rail pressure is good now....but that damn light keeps coming on...but only thing different this time is...when i shut my truck off and turn back on...the light shuts off
 
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