Peugeot 406 hdi getting fuel to injectors but wont fire up how do you test the electrics to the injectors any other likely causeswhat can we test and how?

Answer 1

To test the electrics to the injectors on a Peugeot 406 HDi, you should first check the injector connectors for proper voltage using a multimeter while cranking the engine; you should see around 12V at the connector during cranking. Next, check for continuity in the wiring from the ECU to each injector. Additionally, verify the ECU's operation and ground connections, as a faulty ECU can prevent injector firing. Other likely causes for the engine not firing could include a lack of compression, fuel pressure issues, or a malfunctioning crankshaft position sensor, which can also be tested with appropriate diagnostic equipment.