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New P codes

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A Sneak peek @ the 6.7L (pics)

Aisen transmissions?

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sag2

TDR MEMBER
I was browsing the fault codes for the new engine and noticed two new ones that sounded pretty interesting. P000F is pressure relief valve blown too often, and P0049 turbocharger overspeed. This should put a bit of a damper on the performance suppliers. Also noticed that there are P codes for multiple and single cylinder misfires. This should help out the diagnostics a bunch.

It appears this engine will have full OBDII diagnostics just like the gas engines.
 
sag2 said:
P0049 turbocharger overspeed.



interesting, most likely, that means there is a sensor that reads the actually RPMs of the turbine, would be cool to see that on a read out to see just how fast that sucker is spinning. :D
 
Alphacowboy said:
interesting, most likely, that means there is a sensor that reads the actually RPMs of the turbine, would be cool to see that on a read out to see just how fast that sucker is spinning. :D



yup there's a sensor that is reading turbine speed, the ECM uses that in conjunction with the MAP sensor to adjust the variable turbine housing on the turbo to optimize boost conditions, and air available for combustion, just another emission controlling factor!



wes
 
EMD-Run8 said:
So, is this engine going to be "tamper proof" or will it be tuneable by the aftermarket?



That depends on how clever the aftermarket is and how willing you are to risk emmissions tampering... ..... :-laf



Bob
 
Just thinking outloud.....

Maybe if the aftermarket group can figure out how to flash and reprogram the allowable overspeed limits, it can increase the maximum impeller speed limits before setting a code. No OBDII code set = no dealer concerns ;)
 
What if they can turn off certain sensors like if they removed the DPF or EGR system? You know, for----ahemmm---off-road purposes only?
 
EMD-Run8 said:
What if they can turn off certain sensors like if they removed the DPF or EGR system? You know, for----ahemmm---off-road purposes only?

I'm not sure if there is an on/off road distinction anymore with this new tier of emmissions regulations is there? :confused:
 
Alphacowboy said:
interesting, most likely, that means there is a sensor that reads the actually RPMs of the turbine, would be cool to see that on a read out to see just how fast that sucker is spinning. :D



The current ISB engines have a sensor that shows turbo rpm.
 
no they dont, they dont "need" that kind of monitoring right now, they have the electronic boost control which monitors MAP pressure, and the pressure at the compressor side of the turbo and thats it.
 
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