Thread: P0128 DTC code
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Old 09-04-2010, 08:37 PM
danielsatur danielsatur is offline
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Re: P0128 DTC code
The coolant sensor is telling the ECU, it's too cool for a period time while the engine is warming up!
It could be a bad sensor or a stuck thermostat.

Check coolant level when cold, and make sure the fan is'nt on, thus cooling the coolant system during warm up period.

If the Air cond is on during warm up period, the air condenser fan could be keeping the coolant colder in the system for a longer period of time.
Last edited by danielsatur; 09-04-2010 at 08:47 PM. Reason: c
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