Engines / UDS Engines by part number / 01 - Engine [EV_ECM20TDI01104L906026EA 004004] / Test - exhaust recirculation CUUx


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Control unit
Diagnostic operation
Diagnostic procedure

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Conditions:
- ignition = ON
- engine speed = idling
- intake system - tightness = OK


connect with the control unit XX - engine


XX - Security access

enter value:
XXXXX

Start



XX - Basic settings


select item in menu: IDEXXXXX - Test - exhaust recirculation


mechanical gearbox:
depress and hold: clutch pedal
automatic transmission:
depress and hold: brake pedal



activate default settings

follow the diagnostics instructions

desired condition: open / closed


In the Basic Settings window, click Measured values and select the items you want to visualize.

IDEXXXXX - exhaust gas return valve X- actual value
IDEXXXXX -
Intake air mass sensor X


Monitor the difference in the values during active and inactive regulation IDEXXXXX


required values:

IDEXXXXX = active (>XX%) / inactive
IDEXXXXX - differential pressure - active / inactive >
XXX mh/stroke


upon non--achievement of condition - check component:
- exhaust gas return valve
- wiring
- execute function: basic settings - Low-pressure exhaust gas return valve


You are not logged! System works in DEMO mode only now where numbers are replaced with X characters. For 49 EUR only You will get access into full system. You can pay by credit card or bank transfer. Click BUY button for purchase and  You will get login to diagnostic procedures database imediatelly.

Volkswagen workshop manuals for diagnostics

Log-in Buy