devices the good news is it has allowed engineers to increase performance and efficiency ... that come from a variety of on-board sensors these sensors detect everything engine ... rpm to temperature wheel speed throttle position to ... you get the idea these control modules engine management and anti-lock brakes ... this pre-programming has given the engineers very precise control over vehicle ... gas-powered ® vw cars from `81-up use a coolant-temp sensor to tell the fuel-injection ... computer what temperature the engine is running at the sensor does this by ... signal in ohms that changes with temperature the computer then adjusts the amount of ... fuel sent to the engine based on this signal the symptoms of a ... bad coolant temp sensor can be an engine that starts hard or misses when cold ...
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