Getting 33, 34, and 78 codes
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PMD=Pump Module Driver this is the unit that electonicaly controls fuel to the IP (injection Pump) and the CPS=Crank Shaft Sensor codes 33and 34 are EGR codes these will not keep the truck from running as also the waste gate code you are having
copy paste and do these tests in the following link to the best of your ability and the more info we have the better we can help you
Diagnostic Checklist version 2.0 [10-2009] - Diesel Place : Chevrolet and GMC Diesel Truck Forums
copy paste and do these tests in the following link to the best of your ability and the more info we have the better we can help you
Diagnostic Checklist version 2.0 [10-2009] - Diesel Place : Chevrolet and GMC Diesel Truck Forums
#5
OK. have some info. followed the checklist and here are the answers. 2. 94, 3. 148,000, 4. can't find model #, 5. 1500, 6. yes, 7. good, 8. 1 month old. 9. on pump, part#34583. 11. intermittent. A. yes. 12. yes. A. 33,34,78. 13. cleaned. 14. 1 year old. A. no. 15. cleaned. 16 and 16A. yes. 18. no. 19. 500 to 600. 20. yes. A. down the road. B. no. 21. clear. 23. new. 24. no. 25. no. 26. yes. 27. no. 28. all new AC_DELCO. 29. no. 30. no. 31. pass. 32. #2. 33. no. 34. no. 35. no. 36. unknown.
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