The Series 60 Diesel Turbo Boost Sensor (TBS) is mounted to the intake manifold with two bolts. A rubber O-ring is used to seal the sensor to the manifold. See Figure 40609 .
1. Intake Manifold
3. Turbo-Boost Pressure Sensor
2. Turbo-Boost Pressure Sensor Bolt
Turbo Boost Pressure Sensor
Note: The DDEC I and DDEC II Turbo Boost Sensors are not identical and must not be mixed up.
This device is a pressure sensor that sends an electrical signal to the ECM. The ECM uses this information to compute the amount of air entering the engine. Fuel supply is regulated by the TBS information to control engine smoke.
The TBS is non-serviceable and must be replaced as an assembly. No adjustment is required.
Remove the TBS as follows:
Note: Be careful not to lose the O-ring.
Install the Series 60 diesel TBS as follows:
Note: The TBS is an electronic device. Use care during installation.
Do not overtighten the bolts that mount the TBS to the intake manifold. Damage to the TBS may result. Torque the bolts to no more than 2.4 - 3.0 Nm (21 - 26 inlb).