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i will have to get the info tomorrow
engine serial # XXXXX
The existing control valve and filter shutoff valve assembly will no longer be assembled on production engines but will remain available as Service items only. The engine serial number first for engines built with the new components is 79031440
The new, Turbocharger Control Valve - Low Mount, system will not require an air filter. However, the vehicle must be equipped with an air dryer to meet engine installation requirements.
The vehicle air supply will be plumbed directly to the turbocharger control valve at the inlet port .In addition, a new electronic control module (ECM) has been released with circuit changes to accommodate the new turbocharger control valve logic. The new ECM is a CM870, Part Number(NNN) NNN-NNNN and can be used on previously built ISX CM870 engines. However, the existing ISX CM870 ECM, Part Number(NNN) NNN-NNNN is not forward compatible and can not be used in conjunction with engines assembled with the new turbocharger control valve.
As with previous ISX CM870 engines, the electronic control Module (ECM) sends a pulse width modulated (PWD) signal to the turbocharger control valve to control the variable geometry actuator mounted on the turbocharger. The turbocharger control valve modulates air pressure to the variable geometry actuator on the turbocharger. Thus, as the signal increases, more air pressure is applied to the variable geometry actuator.
A new engine harness is required to interface with the ECM and a new air control line is required to interface with, the turbocharger control valve and the VGT turbocharger.
The new turbocharger control valve has two new Fault Codes:
The wiring diagram,(NNN) NNN-NNNN03, has been revised to reflect the new circuitry of the low mount turbocharger control valve. It will also include specifics on the new fault codes, 2384 and 2385, associated with the new low mount turbocharger control valve.
you should makemsure the correct calibration is in the ecm for the05 engine. you will have problems if the 03 calibration is contorling the 05 engine, and the correct code for this engine to run properly is
according to the numbers i gave you this engine was in a kw?
if i have the ecm that was on this engine originally would that help? the shop that did the swap is willing to send it to me.
i think i get what your going at. either reprogram the 03 ecm thats on the engine now or could i use the 05 ecm that was on the 05 engine and not have to reprogram it? we dont hear air leaking from that valve,its coming from the turbo area. i replaced that valve a year ago though cause it was leaking. it sounds like the turbo is blowing off excess pressure, and i guess because the ecm is an 03 trying to tell an 05 engine what to do.
ok not much service work
currently the 03 ecm is on the motor, the 05 ecm will be in my hands in a couple days. i think it would be better to put the 05 ecm back on the engine and see what happens. i apologize for pickin ur brain so much, this info has been more helpful than anything else. i don't want to damage this engine,as it is the only truck i have and have sunk what i had left into getting it back on the road.
also do you think we will have to change the control valve after reinstalling the 05 ecm?
how can i give you another "tip"
03 engine part numbers
i appreciate doc.