Factory FPR Line and Idle Issues
On the Mitsubishi Evo X, there is a vacuum line that goes from the intake manifold to the Fuel Pressure Regulator (FPR).
From the factory, this hose is not secured and can pop off causing the car to run lean or have a poor idle.
A quick ziptie installed on the hose itself (where circled in red) can help secure this hose and prevent this issue.
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