Detroit diesel 60 series problem

If you have a turbo speed sensor fault that sensor can cut off the turbo from working efficiently. Just because the fault is inactive doesn’t mean that it’s not active because the turbo spins at a very high rpm and that’s when the fault gets triggered. I have also seen turbo speed sensors on a Cummins cutting off a parked regen which obviously doesn’t apply to your situation, but it does play a big roll on how the engine runs.

 

So you still haven't changed out the boost sensor?????????????????????

 

People here are giving you advise and your failing to follow.....

Just because the computer is giving a turbo speed code doesn't necessarily mean that. If your boost sensor is not working or way out of range the computer sees no boost or very low boost for fuel demanded and thinks it's a turbo charger problem........ you see where I'm going with this..

Change out the boost sensor. Geez it's not even very expensive.... I'm not saying I'm 100% positive it's your problem but all things are pointed in that direction. And for the price of a sensor it would of been the first thing I tryed. And just so you know ecms just dont loose there programming. It just dosen't happen.

 

He has a non vgt turbo now. The ecm has absolutely zero control over his turbo. Only thing that makes it spool up is fuel, plain and simple.

 

Turbo speed sensor code tells me that you have a "bad delete" That's as far as I will go here.

 

It really dosen't matter if it's been D-leted or not . If the boost sensor is no good your going to get the same results.

The ecm dosen't see the boost for fuel commanded so it starts throwing all kinds codes that are turbo related.
This is what separates the good trouble shooters vs parts changers. Sometimes you gotta read between the lines and think like the ecm to understand what's going on. A lot dealer techs cant think past what the screan on there handheld tells them......... think out side the box a little...............

Or just carry on and keep throwing parts at it till the $$ gone.

 

Although I don’t have as much diagnostics knowledge of the big diesels, I have extensive knowledge with automotive electronic diagnostics.
With that being said I can’t tell you how many times a car has come in the shop with a brand new sensor on it because the local parts store read the code and sold them the sensor only to have the code reappear.
The next step after that usually involves the parts store selling them an ECM because it obviously wasn’t the sensor.
After that doesn’t work it comes to the shop for a proper diagnosis only to find that the system was working correctly all along and there was a problem in another area that caused the code.
One example was a car came in the shop with a recurring
turbo boost sensor code.
Same deal customer replaced everything to the tune of over a thousand dollars and still didn’t work.
After checking it out it turned out to be a restricted exhaust causing excessive back pressure causing the boost sensor code.
People need to stop getting hung up on code designations and think outside the box and understand how the complete system works.
And for the record if we have replaced 3 ECM units in our shop that were bad in the last 25 years that would be a lot.
They just don’t fail often and I have NEVER seen one loose it’s programing.

 

I’m with swaan, change the sensor I had same problem on my 99.I don’t remember exactly, but believe the engine light never came on. I wonder how they checked it?

 

That was my thought...... a correct delete disabled any need for the use of a turbo speed sensor, or so I thought???