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Engine/Fuel System - Rough Idle/DTC P0171

SOURCE: KIA Technician Times Volume 7 Issue 6, 2004

TITLE: Vacuum Leak

APPLIES TO: 2001-2004 Rio

SERVICE TIP:

Some 2001 through 2004 Rio vehicles may develop a
vacuum leak which will cause the vehicle to run
rough or have DTC P0171 after performing TSB
SC036. The main cause of this concern is a broken
plastic vacuum line Y-Connector (P/N 0K30C
13744A) located below the fuel rail. See the photos for the exact location.