DT466-Stumble or misfire. - Tech tip
I found this tech tip doc that describes Stumble or misfire on acceleration and setting cam codes on I6 engines from 1995 to present.*
Applies To: DT466 DT530 DT570 - Maxxforce Engines
Stumble or misfire on acceleration and setting cam codes on I6 engines from 1995 to present.*
POSSIBLE DIAGNOSTIC TROUBLE CODES & DTC MODULE DESCRIPTION
143 ECM Wrong number of CMP signal transitions per cam revolution
144 ECM CMP signal noise detected
1143 ECM CMP signal incorrect for CKP sync
1144 ECM CKP signal noise detected
1. These cam codes can be set due to camshaft end play out of spec and may not even set a code at all but the truck is experiencing a surge, stumble, or misfire under a load during acceleration.
2. The camshaft end play will need to be checked, to do this you will need tool ZTSE4414 on pre EGR engines.