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Old 11-02-2008, 09:32 AM
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mike2004tct mike2004tct is offline
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Re: I have some codes; need to know what to fix??

The P0128 would indicate the thermostat could be continuously open.
P0151 is the oxygen sensor (normally the heated unit is shot), but this could
also be due to the thermostat.

I'd replace the thermostat first, erase the codes, and see what happens.
It's not that exspensive, and I change mine every 5 years when I change the radiator fluid.
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