Was bedeutet der Fehlercode ECM-130B?

Diagnose und Fehlercodedefinition für ECM-130B (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo C70 (2006–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-130B - Mass air flow (MAF) sensor. Signal too low

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

4 Modelle

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Modelle nach Baujahr und Motor anzeigen (8)

Was bedeutet der Fehlercode?

The fault concerns the MAF sensor circuit, which the engine control module (ECM) monitors. It is set when the module detects a short to ground or voltage in that circuit, or an open circuit. Although the code is labelled too low, a short to voltage can set it as well.

Mögliche Ursachen

Signal wire shorted to ground
Open circuit in the signal wire
Signal wire shorted to voltage
Damaged MAF sensor

Was Sie tun können

1Read the fault code, clear it and test drive to see whether it returns
2Watch the MAF reading in live data with the engine running; a reading that is wrong at the moment points to a permanent fault, a correct one to a sporadic fault
3Check the MAF sensor connector for contact resistance and oxidation
4Check the MAF wiring for chafing, pinch damage and loose clips
5With a multimeter, check that the signal wire has no contact with ground or voltage and that it has no break
6If the wiring looks fine: have a workshop check the MAF sensor

Symptome, die Sie bemerken können2

Engine warning lamp comes on
Engine feels jerky

Was der Fehler beeinflussen kann1

The value is worked out from engine speed and intake pressure instead of being measured

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.