Turbocharger boost sensor: replacement and selection

When and why a turbocharger boost sensor needs replacement

The turbocharger boost sensor has no operational lifetime limit specified. It is replaced after short circuit in electric coil, and if IC chip contacts are oxidized.

An electric coil of the turbo boost sensor can break down due to voltage fluctuation in the car mains. Defects of a microcircuit are mostly caused by ingress of condensed water, which forms in the intake manifold pipe due to temperature variations. Also the cause of part breakdown is presence of oil and soot admixtures in the intake. They are constantly present in crankcase gases, but if piston rings are damaged their concentration increases significantly.

Defect of the sensor can be signaled by “Check Engine” indicator on the dashboard. Moreover, if this part is broken the engine power gets lower. Often, fuel consumption increases as well.

You need to visit a service station for part replacement as it can be mounted in hard-to-reach areas (this depends on car design).