There are times when the exhaust temperature light may come on right after washing the vehicle, since water can get into the wires. Another reason for this could be that the thermocoupler ECU's are not working properly.
When my check engine light comes on, it is caused by the temperature sensor not working. As soon as the light comes on, my temperature drops to cool. If the light goes out, the temp gauge returns to normal.
It is possible there is a baad oil leak on the exhaust. Have it checked out. Good luckJoe
the check engine light means you have something wrong with your emissions. it might be the two sensers on the exhaust pipe.
blown head gasket
Your check gauge light comes on if : your coolant temperature guage shows the temperature is high your oil pressure gauge shows the oil pressure is low or your fuel gauge shows the fuel tank is near empty
Check the O2 sensor located on the exhaust pipe on the passenger side. Could be giving the computer wrong information.
Check the brake light switch. It is defective or out of adjustment.
the check engine light means you have something wrong with your emissions. theres something wrong with how your car lets out exhaust. There are sensers on your exhaust pipe that sense how much exhaust is being let out and how much unburned fuel is coming out. There is a computer in your car that senses that and try's to fix it. one of your sensers might be bad or you might have a clogged catalatic converter.
When the check engine light comes on, it's a good indication that something is wrong with your engine.
When I press my highlight the low light comes on but does not stay on and I have to hold the switch to keep it on.