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1992 Ford Tempo - How to Reset the Service Engine Soon Light?

How do I turn off the service engine soon light off? It's been on for the last 6 months and now the smog check technician says my car will fail the smog test if it is on during the smog test. HELP.

Answer:

Disconnect your Ford Tempo's battery for a few minutes. This will erase all trouble codes and turn off the Service Engine Soon light. Note: If you disconnect the battery for at least 5 minutes and the Service Engine Soon light does not turn off, there is a good possibility your Ford Tempo has a CCT sensor problem. These are all emission sensors on a circuit which are continuously monitored by your Ford's engine control unit (ECU). posted by SmogTips Support

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