I work at an industrial power plant where we service diesel generators with Volvo TAD650VE engines. I noticed that on one of the units, the turbocharger error light turns on and the power drops. I suspect the boost pressure/temperature sensor is the issue, but I have never worked with this type of sensor before. Is there a manual with accurate voltage and resistance readings? I can't find one at the power plant.
There is a Service Manual with voltage readings for Volvo TAD650VE
- Thread starter Jackson_66
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I used to work on marine generators and am familiar with the TAD650VE. In a similar case I encountered, the main causes were usually an unstable signal from the sensor due to old or dirty contacts, a dried-out boost temperature resistor. First, I checked the 5V power supply on the sensor and the pressure signal with a multimeter. Reading the user manual for Volvo TAD650VE on manualmachine was very helpful. There are even diagrams for connecting to the ECU. After cleaning the contacts and checking the wires, the sensor started working properly. Have you checked for corrosion on the connectors or broken wires leading to the sensor?