Chevrolet P168D: Turbocharger Boost Control Position Slow Response - Decreasing Position

Is your scanner showing Chevrolet P168D?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

00:00/00:00

Chevrolet P168D: Turbocharger Boost Control Position Slow Response - Decreasing Position

OVERVIEW

Severity

High

DIY Difficulty Level

Intermediate

Repair Cost

$50-$220

Can I Still Drive?

Yes (Short-term only)

What Does The Chevrolet P168D Code Mean?

The coolant temperature is greater than 70°C (158°F). The engine speed is between 1,000-1,800 RPM. The barometric pressure (BARO) is greater than 74.8 kPa (10.85 psi). The ambient air temperature is greater than -7°C (19.4°F). The throttle position is less than 5 %. The turbocharger actuator position sensor offset learning is not active. The turbocharger vane cleaning/ wiping, procedure is not active. DTC P168C and P168D run continuously whenever the above conditions are met.

The ECM detects that the difference between actual vane position and desired vane position, over a specified amount of time, is greater than a calibrated threshold.