Possible cause of fault
- Leaks
Possible remedy
- Check entire exhaust system for leaks.
1046
Lambda control, before TWC right : Lambda control is at rich stop. (P0171)
Possible cause:
- Lambda control
Affected functions:
- Engine output
-------------------------------------------------
Test 1: In connection with warranty and goodwill work, supplemental information on this symptom is available in TIPS.
Test 2: Check self-adaptation.
1. In connection with warranty and goodwill work, supplemental information on this symptom is available in TIPS.
1. No further information available.
2. Check self-adaptation.
Test 2.1: Check lambda control.
2.1. Check lambda control.
Test 2.1.1: Check component Y58/1 (Purge control valve).
Test 2.1.2: Check signal from component B2/5 (Hot film mass air flow sensor) via actual value.
Test 2.1.3: Check seal of component B2/5 (Hot film mass air flow sensor) with air filter for cracks.
Test 2.1.4: Inspect air cleaner housing.
Test 2.1.5: Check component G3/4 (Right O2 sensor, before TWC [KAT]).
Test 2.1.6: Check component Y62 (Fuel injectors).
Test 2.1.7: Check exhaust system for leaks.
2.1.1. Check component Y58/1 (Purge control valve).
Test 2.1.1.1: Actuate component Y58/1 (Purge control valve).
Test 2.1.1.2: Test current consumption of component Y58/1 (Purge control valve).
Test 2.1.1.3: Perform mechanical inspection of component Y58/1 (Purge control valve).
2.1.1.1. Actuate component Y58/1 (Purge control valve).
Test sequence
- Switch on ignition.
- Actuate component Y58/1 (Purge control valve).(Operate pushbutton F2.)
Warning!Communication with ECU required.
