P2188

278A - P2188

Information saved in
DME

Fault code
278A - P2188

Fault text
Fuel mixture adaptation, idling, per time unit

Fault description
Limit value for adaptive mixture correction at idle not
reached

Condition for fault identification
Test condition:
Air mass < 15kg/h (26 kg/h with a/c on)
650 rpm < Engine speed < 900 rpm
Terminal condition: Terminal 15
Voltage condition:
none

Condition for fault memory entry
none

Action in service
Because the action measures are quite extensive, they are
only implemented in the test module FRAUmin ->
RKATmin

Fault effect and breakdown warning
None
none

Driver information
Warning light:
MIL ON (US only)

Service instruction
None