Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

LP?

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  #1  
Old 10-10-2013, 10:04 PM
blacksally's Avatar
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put a batch of used filter tranny fluid in my truck it started to have no power got a p0251 and p0370 code I opened drain t and it would stay running unplugged LP still stayed running erased code came right back should I try a new LP or clean opitic sensor ? any input would be nice!

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the lift pump is working im sure hope its not the IP

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I have a bully dog monitor and I can barely hit throttle it says its 45% load??? and left off the throttle says 0 before use to say 1 or 2???? it runs but doesn't have barely any power

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I cleaned optic sensor its still runs like garbage im guessing the injection pump is shot or something? anyone have any in point at all should I drain the fuel and put fresh in it?

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IP must be working it runs and drives I cracked a injector line and its pourin fuel out im gunna try draining all the trannny/fuel out and try fresh fuel?
 

Last edited by blacksally; 10-10-2013 at 10:04 PM. Reason: Automerged Doublepost
  #2  
Old 10-11-2013, 01:41 PM
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Be vary carefull with the OS,it is installed with prescision and if not put back in exactly the same place it was will cause a lot of problems requiring an IP calibration to correct it.
OS directions:
Roy Halvorsen
 
  #3  
Old 10-12-2013, 11:39 PM
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so I put my walbro lift pump in as we talked about getting fuel up to ip then nothing to injectors can it have that much air in it? since before I didn't see much fuel when I took tio off ip? or can the os be making it not get fuel?? I have intake off and hooked up the grounds and my volt gauge doesn't some much oil pressure doesn't go up but I hear lp come on my blinkers lights in dash both show up no day time driving lights etc im at loss idk what to do can afford a ip right now booooo any ideas?
 
  #4  
Old 10-13-2013, 03:02 PM
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i believe you created a big problem when you cleaned the OS.

Both your codes are from that OS cleaning and not marking it's location before removal.
You now need to take the IP to a rebuild shop with a calibration bench to get it put back in exactly the right place.

Not sure if the trans oil has created a problem with the IP fuel solenoid as well but you may actually need an IP now?

ECM B fuse good?
rest of fuses good?
 
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Old 01-12-2014, 06:18 PM
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sorry everyone what is an OS ?
 
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Old 01-12-2014, 06:25 PM
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Originally Posted by Ohiomike
sorry everyone what is an OS ?
Optic Sensor
 




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