Long‑term high‑temperature exhaust impact, carbon soot accumulation and internal component aging will result in signal drift. Typical failure symptoms: MIL check‑engine light on dashboard, shaking rough idle, increased fuel consumption, black exhaust smoke, insufficient power output and related OBD fault codes stored. Many repair shops repeatedly test ignition parts and injectors, ignoring defective oxygen sensor which causes repeated failure.
This replacement oxygen sensor replicates OEM thread specification, signal output characteristic and complete sealing gasket. High‑temperature resistant probe adapts harsh exhaust manifold environment. Apply anti‑seize compound to thread before installation. Suitable for Mitsubishi Pajero SUV engine fuel‑system overhaul assignments.