What does fault code ECM-P050A92 mean?

Diagnostic fault code details for ECM-P050A92 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P050A92 - Cold Start Idle Air Control System Performance. Component Failures. Performance or incorrect 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 up to working temperature. The code is set when the actual idle speed stays above the limit for a set time. This is a component fault in which the idle control does not work as intended. An air leak in the intake system may be the cause.

Possible causes

Air leak in the intake system

What you can do

1Check the intake system for air leaks at the hoses and at the connections to the intake manifold
2Note whether the high idle is present when the engine is cold or also when it is warm. A higher idle during warm-up is intentional
3If you have a diagnostic tool, read the idle speed in live data during a cold start and see how it changes 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 system for leaks

Symptoms you may notice2

High idle, either sometimes or all the time
Uneven idle

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