<strong>Yahoo Message Number: 67850</strong>Hello fellow Country Coachers.<br/><br/>We are trouble shooting a Cummins ISL 370 engine brake problem, and both myself and Cummins are about 90% sure it's a bad ECM. Problem is, they don't have a test ECM and the only way to get one is to buy it for $1275 + $250 to program it (a Cummins remanufactured one). The ECM part number I'm looking for is...