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

1996 6.5td idle problems

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  #61  
Old 12-27-2013, 07:14 AM
racer55's Avatar
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Borrowed from gmctd @ diesel place:
PMD harness wiring:


A - Fuel Inject control - grn - to PCM

B - FSOL+ - lg red - to Fuel Solenoid

C - Closure ground - sm black - to PCM

D - +12v power - pink\blk - to ESO solenoid and IGN

E - Fuel inject signal - small red - to PCM

F - FSOL ground - lg black - to Fuel Solenoid and IP ground

FSD connections to 4-wire IP harness connector from PCM\IGN -

FSD A green to...........A IP connector

FSD C small black to....B IP conn

FSD D pink\black to.....C IP conn

FSD E small red to.......D IP conn

FSD B and F go to Fuel Solenoid on IP

Black ground wire attached to top of IP must be attached to top of IP

On my 96 there was no problem removing the filter and running the harness directly to the OS,can't say on yours though?
 

Last edited by racer55; 12-27-2013 at 07:18 AM.
  #62  
Old 12-28-2013, 02:32 PM
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thank you. we will see how i feel in the morning maybe ill be good enough to do some testing

---AutoMerged DoublePost---

Its the b pin that's burnt
 

Last edited by Irish_Alley; 12-28-2013 at 02:32 PM. Reason: Automerged Doublepost
  #63  
Old 12-28-2013, 02:40 PM
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Better pull the upper and lower intake and look to see if the large wires on the rear of the IP-the fuel solenoid are shorted or need tightened?
 
  #64  
Old 12-28-2013, 11:12 PM
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sounds like fun . i will try tomorrow but i think its going to rain. was able to remove the noise filter, so next time i get a chance i will try her again. but im leaning to the problem being related to the burnt wires
 
  #65  
Old 01-09-2014, 11:39 PM
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well a little over kill but pulled the motor. inspected the pump everything looks good. but the bad... if we replace the pump we will be guessing, so might also replace the ecm just for "performance". manifolds need replacing (old plow truck) glow plugs need replacing injector lines look hurt and prob injectors also. this is the reason for pulling motor and manifolds pretty much had to be cut off. now just getting the funds together but have more important bills to be paid first. then we have to decide if the 6.5 is worth it or put maybe save some money and put a 5.9 into her
 
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