i replaced my thermostat and now my pcm relay is chattering and the engine wont start. why is my relay chattering?

Asked by May 20, 2014 at 02:04 PM about the 1998 Honda Civic Coupe DX

Question type: Maintenance & Repair

1 Answer

PCM is not a relay - its the engine control computer - aka ECU, ECM Powertrain Control Module - PCM. Chattering? Did you mean positive crankcase ventilation (PCV)?

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