VOLVO
ECM-P001921 - Crankshaft Position - Camshaft Position Correlation - Bank 2 Sensor B. General Signal Failures. Signal too low
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
1 ModellS80 (2007–)
Modelle nach Baujahr und Motor anzeigen (1)
Was bedeutet der Fehlercode?
The engine control module compares the exhaust camshaft position with the crankshaft position and adjusts the adaptation when they do not agree. The code indicates a signal that is too low in bank 2, sensor B, and is set when the adaptation changes by more than a certain amount.
Mögliche Ursachen
- Incorrectly set camshafts
- Damaged VVT unit
Was Sie tun können
- 1Read the code and note whether it is active right now or only stored
- 2If you have a diagnostic tool: read the exhaust camshaft adaptation for bank 2 in live data with the engine running
- 3Check the connector at the exhaust camshaft sensor for loose or oxidised parts
- 4Check the engine oil level and that the oil is clean and of the right quality
- 5Have a workshop check the camshaft basic setting
- 6If the fault returns: have a workshop clean the control valve, or fit a new one, and check the VVT unit
Symptome, die Sie bemerken können5
- The car lacks power, especially when pulling away from standstill
- Engine does not start, the starter motor cranks it
- Engine is hard to start and cranks slowly
- Uneven idle
- Engine hesitates or runs jerkily when slowing down
Was der Fehler beeinflussen kann1
- The control module uses a fixed value for the camshaft adaptation
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.