fds diagnoises
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#12
Join Date: Oct 2012
Location: Scugog Island ONT.
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The fuel solenoid pulse width is a commanded duration from the ECM,having a longer duration than expected is out of the control of the item being powered.
Unless the diagnostic troubleshooting is a GM diagnostic spec,it is nearly worthless.
The aftermarket has little understanding of the operation of these engines,nor do very many technicians nation wide.
A very good no start diagnostic is however available here:
www.AccurateDiesel.com - PMD Installation Instructions - Accurate Technical Services, LLC
Unless the diagnostic troubleshooting is a GM diagnostic spec,it is nearly worthless.
The aftermarket has little understanding of the operation of these engines,nor do very many technicians nation wide.
A very good no start diagnostic is however available here:
www.AccurateDiesel.com - PMD Installation Instructions - Accurate Technical Services, LLC
#14
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Glad you were able to get a result from the procedure.
Post back when you get a NEW PMD and have it relocated behind/under the frt bumper or behind the grill on a rad support with a resistor installed and an extension harness(homemade/buy).
Getting the PMD away from underhood heat after shutdown/heatsoak is the best thing you can do to lengthen it's life-they do not tolerate sudden temp swings in any direction.
Also it's good to know the problem is solved.
Post back when you get a NEW PMD and have it relocated behind/under the frt bumper or behind the grill on a rad support with a resistor installed and an extension harness(homemade/buy).
Getting the PMD away from underhood heat after shutdown/heatsoak is the best thing you can do to lengthen it's life-they do not tolerate sudden temp swings in any direction.
Also it's good to know the problem is solved.
#16
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The resistor is in the PMD harness cavity,a little smaller than the plug otherwise it wouldn't fit.
Sizes come most often from #1 to #9 with 9 allowing the most fuel correction.
They are used to calibrate the IP's for equal fuel output in a given range-emission wise.
A small pair of snap ring pliers is good for removing them from old PMD's,the 2 holes below the pin holes are where to grasp with the pliers.
Sizes come most often from #1 to #9 with 9 allowing the most fuel correction.
They are used to calibrate the IP's for equal fuel output in a given range-emission wise.
A small pair of snap ring pliers is good for removing them from old PMD's,the 2 holes below the pin holes are where to grasp with the pliers.
Last edited by racer55; 11-04-2012 at 07:20 AM.