Medium and Heavy Trucks
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Hi Rickey, My name is***** the check engine light coming on? Are there any fault codes logged in the ECM?
Ok. let me know. We can post back and forth as needed
Pleasure to help
39 is VNT Vane/ EGR fault. Here is the Troubleshooting information Fault 39
49 is Turbo compressor inlet/outlet temp.
TCI Temperature Above Range
(Release 33.0 or later)
Turbo Compressor Out Temperature High
(Release 32.0 or later
A/D Conversion Fail
52 is an indication of internal ECM problems
39 is likely the main part of your problem.... EGR problems and VNT turbo problems. Likely plugged with soot/carbon buildup
Monitor your boost pressure and also check for leaks in your turbo and intake piping and opertion of your VNT turbo as the turbo may not be opening up for full boost