Diesel Fuel Injection System Help Desk

[Dieseldude]

Hi, my ride is adventure 2006 diesel glx. Kanina lang, nagwild yung techometer ko (tachometer, not the engine). Taas-baba sya for a few minutes. Then nag ok na, hindi na naulit.

May naka encounter na ba sa inyo nito? What to check?

Check for faulty engine speed sensor and/or harness connections.