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Can a bad coolant temperature sensor cause car not to start?
The sensor will not cause a no start. It could cause a hard start and a rich or lean condition only.
What does a bad coolant temperature sensor do to a car?
If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. It is not uncommon for the coolant temperature sensor to fail and send a permanently cold signal to the computer.
Can you drive a car with a bad coolant temperature sensor?
Faulty readings from the coolant temperature sensor can cause your car’s engine to miscalculate the fuel to air mixture within the engine. If the amount of black smoke emitting from your car is excessive, then you should not drive your car and you should tow your vehicle to a mechanic.
Where is the coolant sensor on a Mazda 323?
I recently bought a Manual 97 Mazda Lantis 323 1.8L DOHC 16 Valve BP. I found the following wire unplugged on the drivers side of the engine, next to the water intake from the radiator: It plugs into the grey connector with the gold base.
Can a bad coolant temperature sensor keep the car running?
Your symptoms are a dead ringer for a bad engine coolant temperature sensor (ECT). The computer is calculating an air/fuel mixture that is too lean. That’s why pumping the gas pedal keeps your engine running. You can have a bad sensor even without a “check engine” light or trouble code.
When to replace the check engine temperature sensor?
If you have starting problems and the ‘check engine’ light doesn’t come on, you may have a bad engine coolant temperature sensor (ECT). They’re quick and easy to replace. See the crack? This sensor didn’t set off a trouble code or “check engine” light.
Why does my Mazda 323 run in limp home mode?
Without the computer knowing the temperature of the engine, it has to run in a “limp-home” or “open loop” mode (depending on how the vehicle manufacturer does things). This mode is usually very rich. It does this so that the engine will not encounter a lean state which can cause damage much faster than a rich state.