1.5K views · 464 reactions | ⚒PACCAR MX 13 ECM ⚠The common problems! 1. The ECM will power on and the engine will start, but shuts down when hot. 2. The truck runs fine and randomly shuts off or shuts off when you tap on the ecm. 3. The ECM shows communication codes and the wiring is good. If you guys want to learn more about ECMs  Follow me for more #ecmsrepair #dieseltrucks #truckers | Oscar Truck ECM | Facebook

Isuzu Trooper 4JX1 (2003)❗ error codes❗ usually mean — these are OBD/ECU diagnostic codes specific to the 4JX1 diesel engine (common rail type): ❗Code 22 ❗Cose 74 ❗Code 66 ⚠️ Error Code 22 – Throttle Position Sensor (TPS) Circuit Meaning: Voltage from the Throttle Position Sensor is out of range (too low or too high). Possible causes: Faulty TPS sensor (on throttle body) Loose or corroded TPS connector Broken wire between TPS and ECU Incorrect TPS voltage adjustment Fix/check: 1. Unplug TPS conn