Volkswagen Golf 2013 Quick Reference Specification Book page 200

DTC
P043F Evaporative Emission System
Leak Detection Reference
Orifice High Flow
P0441 Evaporative Emission System
Incorrect Purge Flow
P0442 Evaporative Emission System
Leak Detected (Small Leak)
P0444 Evaporative Emission System
Purge Control Valve Circuit
Open
P0447 Evaporative Emission System
Vent Control Circuit Open
P0448 Evaporative Emission System
Vent Control Circuit Shorted
P0455 Evaporative Emission System
Leak Detected (Gross Leak/
No Flow)
P0456 Evaporative Emission System
Leak Detected (Very Small
Leak)
P0458 Evaporative Emission System
Purge Control Valve Circuit
Low
P0459 Evaporative Emission System
Purge Control Valve Circuit
High
P0491 Secondary Air System
Insufficient Flow
188 VW Golf & GTI Quick Reference Specification Book • September 2012
Error Message Malfunction Criteria and
Threshold Value
Engine off
• EVAP pump current during
reference measurement <
15.0 mA
Engine on
• EVAP pump current during
reference measurement > 15.0
mA
Deviation < 8% lambda
controller and 35% idle
controller
Time for pressure drop < 1.6 -
1.8 Sec.
Signal voltage > 4.70 - 5.40 V
• Open circuit signal voltage >
4.7 to 5.4 V
• Short to ground, signal voltage
> 27 to 3.26 V
• Short to battery positive, signal
current > 2.2 to 4.0 A
Time for pressure drop
< 1 Sec.
Time for pressure drop, < 4.5 -
6.0 Sec
Signal voltage 0 - 3.26 V
Signal current > 2.2 A
SAI pressure sensor vs modeled
pressure < 60 to 75%