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Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3382
Experience:  ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician
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Clayton. I have a 2006 columbia freightliner with detroit

Customer Question

Hi Clayton. MY NAME is***** have a 2006 columbia freightliner with detroit engine series 60 14 liter. The egr has been deleted, with a loaded trailer at 8,9,10 gear i will loose boost at 1400 and 1500 rpms and i feel like the turbo is forcing engine temp goes up 200 then check engine ligh comes on and after ligh comes on i dont feel the turbo forcing truck runs good but wont have boos for small hills. Codes when check engine light comes on ecu 128 sid 146 fail 07. I have new vpod.any ideas?
Submitted: 2 years ago.
Category: Medium and Heavy Trucks
Expert:  Jeremy replied 2 years ago.

My name is ***** ***** I will assist you.

Did you get the delete done at a shop? I suggest contacting them because the code you are getting is the EGR isn't responding. So what ever the shop put on the truck to trick the engine into thinking the EGR is working and responding, it isn't working properly and yout truck is in "inhibition" or limp mode. That is why you are losing the boost you are having.

Every shop has their own way to do the delete and to trick the engine. That is why I suggest contacting that shop to see if they used a tansistor in place of the sensor or if they used a bypass sensor, etc. It may be the part they installed has gone bad and causing that issue.

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