Groups 070 - 079: Emission Control Systems (EVAP, Sec. AIR, EGR)

070

Fuel tank venting and valve testing, short trip

 

Opening degree fuel tank ventilation[1]

Lambda regular/

diagnostic value with  active diagnose

Idle air control valve / diagnostic value with active diagnose

Result

 

[%]

[%]

[[2]] / [%] / [g/sec]

Test ON/ Test OFF/
Fuel tank ventilation OK/ Fuel tank ventilation not OK.

071

Fuel tank leak test, short trip

 

Condition reed contact

DTC

Test status

Result

 

Text

Reed Open / Reed Closed

Text

Small leak/large leak

System test/measurement/
measurement end

Test ON/ Test OFF/

 Abort
Syst. OK/ Syst. Not OK

072

Tank leak test

 

 

 

 

 

 

 

 

 

 

073

 

 

 

 

 

 

 

 

 

 

 

 

074

EGR regulator solenoid adaption

 

Null-Position

Max. stop

Current potentiometer value

Text

 

[V]

[V]

[V]

Leak detection pump runs/ LDP OK/ ERROR

075

EGR, short trip

Systems with Temp.-sensor

 

Engine RPM

EGR-Temp. Sensor

EGR temperature difference

Result

 

[1/min]

[C]

[C]

Test ON/ Test OFF/

Syst. OK/ Syst. Not OK

075

EGR, short trip

Systems with intake manifold pressure sensor

 

Engine RPM

Intake manifold pressure

Intake manifold pressure difference

Result

 

[1/min]

[mbar]

[mbar]

Test ON/ Test OFF/
Syst. OK/ Syst. Not OK

075

EGR, for map adaption short trip

Systems with intake manifold pressure sensor

 

Pressure difference diagnostics EGR phase 1 and 2

Pressure difference diagnostics EGR phase 2 and 3

Pressure difference diagnostics EGR phase 1 and 3

Result

 

[hPa]

[hPa]

[hPa]

Test ON/ Test OFF/
Syst. OK/ Syst. Not OK

076

EGR for pressure systems

 

Engine RPM

Intake manifold pressure

Opening degree (U/Uref)

EGR potentiometer

Duty cycle EGR valve

 

[1/min]

[mbar]

[%]

[%]

076

EGR for air mass system

 

Engine RPM

Last

Opening degree (U/Uref)

EGR potentiometer

Duty cycle EGR valve

 

[1/min]

[%]

[%]

[%]

076

EGR map adaption

 

Actual EGR value potentiometer without offset

Correction factor in the upper opening range

Correction factor in the lower opening range

Status

 

[V]

[%]

[%]

Test OFF / Leak detection pump runs/ LDP OK/ ERROR

077

Test secondary air injection system, short trip, Bank 1

Systems with conventional oxygen sensor

 

RPM

Engine air mass

Air mass secondary air injection system

Result

 

[1/min]

[g/sec]

[g/sec]

Test ON/ Test OFF/  Abort
Syst. OK/ Syst. Not OK

077

Test secondary air injection system, short trip, Bank 1

Systems with linear oxygen sensor

 

RPM

Engine air mass

relative Air mass

Result

 

[1/min]

[g/sec]

[ ]

Test ON/ Test OFF/ Abort  
Syst. OK/ Syst. Not OK

078

Test secondary air injection system, short trip
Bank 2

Systems with conventional oxygen sensor

 

RPM

Engine air mass

Air mass secondary air injection system

Result

 

[1/min]

[g/sec]

[g/sec]

Test ON/ Test OFF/ Abort
Syst. OK/ Syst. Not OK

078

Test secondary air injection system, short trip, Bank 2

Systems with linear oxygen sensor

 

RPM

Engine air mass

Relative air mass

Result

 

[1/min]

[g/sec]

[ ]

Test ON/ Test OFF/  Abort
Syst. OK/ Syst. Not OK

079

 

 

 

 

 

 

 

 

 

 

 

 



[1] Duty cycle

[2] The fitting unit depends on the applicable system