volvo d12 egr

A couple gallons of gasoline & a thick sulfur match should cure all your Volvo problems.

 

well, one of the codes you gave was for the datalink

SID 231 SAE J1939 Data Link

on most trucks they use 2 datalinks...and on newer trucks they have EVERYTHING sending data through these datalinks to the ECM. so i am assuming maybe you have a bad wire somewhere... possibly a connector. i see alot of these connectors corroded up. check all the green/yellow wires for the datalinks and their connectors. if it had a qualcomm box on it, check on the back of the cab at the top, sometimes they get corroded up there.

 

Too many control units use J1939 in Volvo truck, some of them, like Climat Unit, BBM, DynaFleet, ECAS and other may overload datalink for less then 1-2 seconds but ECM stores codes related with data delay. So pay no attention till code is active

 

Is it having a hard start? Is there any smoke from the exhoust or from the breather pipe, Dit you check and re adjusted the injection rockers, it could be a range of small problems please feel free to contact me +27798746962 or e-mail :jpbrandow@gmail.com