porsche Workshop Repair Guides

Porsche Workshop Service and Repair Manuals

Diagnosis of Vehicle Speed Sensor|Page 2747 > < Removing and Installing Hydraulic Valve For Camshaft Adjustment - Engine Installed|Page 2742
Page 1
background image

Vehicle Speed Sensor: Testing and Inspection
Diagnosis of Vehicle Speed Sensor

Diagnosis Of Vehicle Speed Sensor

Fault recognition of vehicle speed is performed during fuel cut-off.

A signal fault is detected if:

-

the condition fuel cut-off is valid for the time period threshold,

-

the engine speed is between two given thresholds,

-

simultaneously the vehicle speed is lower than threshold and,

-

engine temperature is greater than threshold.

Diagnosis of Vehicle Speed Sensor

Diagnosis of Vehicle Speed Sensor|Page 2747 > < Removing and Installing Hydraulic Valve For Camshaft Adjustment - Engine Installed|Page 2742