Ford Powerstroke 94-98 7.3L Discussion of 94-98 7.3 Liter Ford Powerstroke Turbo Diesels

injectors pressure problems

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  #1  
Old 08-05-2009, 01:32 PM
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Default injectors pressure problems

hey, after i installed my injectors everything was great but when i put it to the floor to pass someone my check engine light went on and i said ohh great well i checked this code with my old edge evolution and it said injectors pressure belowe/above desired level. im just wondering if this is a big problem i should be conserned about or not, it goes away after i shut the truck off and restart it and it doesnt seem to cause any performance problems.
 
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Old 08-05-2009, 02:08 PM
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may be oil pressure, 7.3 uses oil pressure to pop the injector, might want to start there.
 
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Old 08-05-2009, 04:36 PM
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idk the truck runs great it doesnt cause any problems im just curiuse if anyone eles has had this problem with the obs truck
 
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Old 08-05-2009, 09:40 PM
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Oil gets drained from the oil rails before or during injector extraction and is replaced by air. Drive it for a while to purge the air.
 
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Old 08-07-2009, 04:26 PM
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thats P1211... your running out of High Pressure Oil on the top end.... to stop the light you will need to upgrade your high pressure oil pump.... a 17* would probably be enough but big oil from Swamps, Stealth, or Terminator would be best...

you may not see it hurting performance right now but with more oil you will see a big improvement in performance...
 

Last edited by blk99; 08-07-2009 at 04:28 PM.
  #6  
Old 08-19-2009, 12:47 AM
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Your little baby 15* hpop is not liking your new injectors... I would just find a good 17* pump and go for it.
 
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Old 08-23-2009, 08:56 PM
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yep sounds like its time to upgrade the HPOP
 
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