What does fault code ECM-P030198 mean?

Diagnostic fault code details for ECM-P030198 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P030198 - Cylinder 1 Misfire Detected. Component Failures. Component or system over temperature

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

3 models

S60 (2011–), S80 (2007–), V70 (2008–)

Show models by year and engine (9)

What does this fault code mean?

The fault code is stored when the engine control module (ECM) detects misfires on cylinder 1 that can damage the catalytic converter, during a period after the engine starts. The misfire can make the catalytic converter overheat, and the code shows which cylinder is affected.

Possible causes

Low fuel level
Contaminated or incorrect fuel
Air leak
Clogged or leaking injection valve
Incorrect fuel pressure
Damaged VVT unit

What you can do

1Read the fault codes; any camshaft control codes are traced first
2Check the intake system and the crankcase ventilation for leaks and clogging
3Check that the fuel level and fuel quality are correct, and that the engine oil level is right
4If you have a diagnostic tool: read the ethanol content calculated by the control module in live data and see whether it matches the fuel that has been filled
5Have a workshop with diagnostic equipment check the fuel pressure, the compression and the VVT unit, and adjust the ethanol content if needed

Symptoms you may notice5

The engine is hard to start and cranks slowly
The engine feels short of power
The engine hesitates, surges or runs roughly when driven
Uneven idle
The Check engine light lights up or behaves abnormally

What the fault can affect2

Rear oxygen sensor control is switched off
Lambda control is switched off

General guidance for car owners. Diagnosis on the car can point to a different cause.