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2000 gs300 Po125 code and overheating at idle

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Old 01-03-23, 09:35 PM
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wantedISfr
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Default 2000 gs300 Po125 code and overheating at idle

So I’ve been gettin the p0125 code for a while now, and I don’t know what else to do I’ve replaced the thermostat, temp sensor and the radiator is only 6 months old, also recently it’s been overheating at an idle making the coolant in the reservoir boil and leak out.
any advice on next steps to take?
Old 01-03-23, 09:58 PM
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FrankT
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...check the radiator cap gasket if good I would also test for exhaust gases in your coolant, with a block tester like
this this
.

good luck

Last edited by FrankT; 01-03-23 at 10:03 PM.
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