What does fault code ECM-P050A94 mean?

Diagnostic fault code details for ECM-P050A94 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P050A94 - Cold Start Idle Air Control System Performance. Component Failures. Unexpected operation

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

5 models

S60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–)

Show models by year and engine (12)

What does this fault code mean?

On a cold start the ECM raises the idle speed to warm the catalytic converter. The code is set when the actual idle speed stays below the limit for a set time, that is, even though the idle should be higher during warm-up. A blocked intake or exhaust system may be the cause.

Possible causes

Blocked intake system
Blocked exhaust system

What you can do

1At low and unsteady idle speed: check that the intake and exhaust systems are not blocked
2Check that the air filter is not clogged and that the intake is free from objects
3If you have a diagnostic tool, read the idle speed in live data during a cold start and see whether it rises during warm-up
4Clear the code and road test the car, or let the engine cool and start it again to see whether the code returns
5If the code returns, have a workshop with diagnostic equipment check the intake and exhaust systems and the idle control

Symptoms you may notice3

The check engine lamp lights or behaves abnormally
Low idle, either sometimes or all the time
Uneven idle

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