What needs to be done with error codes P2187, and P2189 on a 2004 Volvo S80 2.9L? The check engine light is on
P2187 Long fuel trim upper limit
P2189 Long fuel trim Bank 2 upper limit
Inspect for a vacuum leak, especially at the crankcase vacuum hose connection, this code is either caused by is a vacuum leak or the MAF (mass airflow)
Here a broken crankcase connection caused P2189
Here is another sample of a vacuum leak
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