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i have a 2000 galant with code p0125 and when it\'s cold it does not want start.

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HI there,

This code is for insufficient temp reached for closed loop operation.

Normally this will not be the cause of the running issue, but rather a symptom of another problem. This code can exist if the engine isn't getting up to operating temp. This could be a stuck thermostat, bad engine coolant temp sensor or low engine coolant.

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