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Home >> Mitsubishi >> 1995 >> Eclipse GSX, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.0L Non-Turbo >> Diagnostic Tests >> Code 102: Upstream Ho2S Response

Code 102: Upstream Ho2S Response

NOTE: For component terminal identification, see TERMINAL IDENTIFICATION  in this article. For appropriate WIRING DIAGRAMS, see WIRING DIAGRAMS  section.

Check exhaust system for damage or exhaust leaks. If exhaust system is okay, check oxygen sensor connector, PCM connector and wiring harness between oxygen sensor and PCM. If wiring and connectors are okay, replace oxygen sensor.

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