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The ECT sensor measures the coolant temperature in the cooling system, which lets the PCM control the spark timing and fuel mixture.
When the engine is cold, the PCM adjusts the fuel mixture to be richer than normal to prevent the engine from stalling and stumbling. When it’s warm, the engine gets a leaner-than-normal fuel mixture to maximize fuel economy while releasing the lowest possible exhaust emissions.
The ECT sensor is a high-authority sensor whenever the engine is cold because ignition timing is tailored according to the engine coolant temperature. It also provides input for idle air control (IAC) position, oxygen sensor closed-loop status, on/off times for the canister purge, and idle speed.
$5,235.00
The ECT sensor measures the coolant temperature in the cooling system, which lets the PCM control the spark timing and fuel mixture.
When the engine is cold, the PCM adjusts the fuel mixture to be richer than normal to prevent the engine from stalling and stumbling. When it’s warm, the engine gets a leaner-than-normal fuel mixture to maximize fuel economy while releasing the lowest possible exhaust emissions.
The ECT sensor is a high-authority sensor whenever the engine is cold because ignition timing is tailored according to the engine coolant temperature. It also provides input for idle air control (IAC) position, oxygen sensor closed-loop status, on/off times for the canister purge, and idle speed.
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