Engines / Petrol / 2.0/110kW FSI BVY/BVX/BVZ/BLY / Test - lambda control - Lambda-sensor downstream of catalyst 3


Mark Model Control unit Diagnostic operation
Displayed 1-20 records out of 100. << < 1 > >>
Mark
Model
Control unit
Diagnostic operation
Diagnostic procedure

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

Conditions:
- exhaust system - tightness of line - OK
- engine temperature > XX °C
- catalyst temperature >= XXX °C (XX - Measured values group XXX field X)


Start the engine


wait X minutes



connect with the control unit
XX - engine

XX - Measured values group XXX


required values
field X (Lambda-sensor upstream of catalyst X):
xxxxX =
lambda control = active
xxxXx =
lambda control = readiness for operation
xx?xx = heating of lambda probe(s)

required values
field X (Lambda-sensor upstream of catalyst X):
xxxxX =
lambda control = active
xxxXx =
lambda control = readiness for operation
xx?xx = heating of lambda probe(s)


XX - Measured values group XXX
increase rpm to XXXX rpm

required values
field X
- XXX (readiness for operation - YES)

engine speed = idling

XX - Measured values group XXX


X x smoothly depress brake pedal

Initiate deceleration by quickly pressing the accelerator pedal to the floor and releasing it


observe values - field X

required values
field X < X,X V
- (deceleration)


XX - Basic settings
group XXX
activate default settings
fully depress - brake pedal + accelerator pedal

required values
field X = X,XX - X,X V
(Lambda-sensor downstream of catalyst X - voltage)
field X = BX-SX OK

release - brake pedal + accelerator pedal


if values are not achieved - field X - check component:
- field X =< X,XX V -
Lambda sensor(s) - short-circuit to GND

- field X >= X,X V -
Lambda sensor(s) - short-circuit to +XXV
- field X = X,X - X,XV -
Lambda sensor(s) - shut-off

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