cylinder head temp. sensor replacement
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cylinder head temp. sensor replacement
I have received a code twice during really cold weather and I think it is P0125. This says that the CHT sensor is recording too low of operating temperature. The question is two fold. What happens if you do not change it? Second I have read that you have to remove the whole intake manifold to replace it. Does anyone have an easier way to replace it than removing the whole intake manifold? I have looked for the darn thing and can not even see where it is located. Thanks for any help anyone can offer.
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From: Isanti, MN
Before replacing anything, you really need to see what the PCM is seeing for that sensor value.
I wouldn't suspect the CHT sensor first with a P0125. That code typically means the engine isn't coming all the way up to temperature, which is most commonly caused by a sticking thermostat. I'd recommend investing in a bluetooth OBD reader like and checking some sensor values before replacing anything. Most of us recommend the Torque Pro app for Android. This kind of thing is possible with an iPhone, but it requires a WiFi adapter.
Check for coolant temperature first after sitting overnight. Does it closely match the ambient temperature? Then monitor how it behaves as you start driving; does the temperature slowly rise to around 190* and level off?
I wouldn't suspect the CHT sensor first with a P0125. That code typically means the engine isn't coming all the way up to temperature, which is most commonly caused by a sticking thermostat. I'd recommend investing in a bluetooth OBD reader like and checking some sensor values before replacing anything. Most of us recommend the Torque Pro app for Android. This kind of thing is possible with an iPhone, but it requires a WiFi adapter.
Check for coolant temperature first after sitting overnight. Does it closely match the ambient temperature? Then monitor how it behaves as you start driving; does the temperature slowly rise to around 190* and level off?
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Thanks guy for the heads up. I think the logical step is to buy the OBD reader although i have an Auto Xray 6000 or something like that. This gadget looks great and i can hook it up to an android tablet that i have. Then i will replace the thermostat. I will do that no matter what. Learned a lesson a long time ago about not replacing a thermostat that you even suspect might be bad/ sticky. That little mistake can cost you and engine. Thanks again.
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