As the crankshaft rotates, the sensor produces a pulsed voltage signal, where each pulse corresponds to the tooth on the reluctor ring. The photo below shows the actual signal from the crankshaft position sensor with the engine idling. In this vehicle, the reluctor ring is made with two miss...
Throttle position sensor - Monitors the throttle valve position (which determines how much air goes into the engine) so the ECU can respond quickly to changes, increasing or decreasing the fuel rate as necessary Coolant temperature sensor - Allows the ECU to determine when the engine has reached...
ADS relay has a purpose always. It will not provide power directly to the fuel pump. It will providepower to fuel pumpif there is a cam or crankshaft portion sensor that detects at the ECU or PCM; in a single line, it’s unnecessary. If you thought that Relay is problematic, then yo...
which tracks and adjusts how much power is being sent throughout the car; the fuel injectors, which provide fuel at precisely the right moment for optimum power delivery; the position sensors for the camshaft and crankshaft, which identifies the engine's cycles; the mass airflow sensor and MA...
Keeping an eye on MAP sensor inputs is a good way to ensure your engine works efficiently and to spot issues early. Changes in these readings might affect how well your engine performs and how much fuel it uses. They can also cause the check engine light to turn on. ...
a first year 1975 Rabbit. The plan was to test it only to 24,000 miles, but since the car required extensive upgrading to 1976 specs (by VW) and then suffered a major failure (broken crankshaft) along with numerous more minor maladies, the test was...
The O2 sensor on the Chrysler Town and Country should last for at least 60,000 miles without failing. When the O2 sensor does fail, it will likely generate an error code and cause the check engine light to come on. This error code can be diagnosed easily
These trucks cost too much to have a terrible product. Toyota will be my next truck unless GM owns up and makes wright with consumers. After all we bailed them out of bankruptcy. The service manager that I spoke with said, GM states if 2 qts of oil is used between oil change...
Bringing your car's emissions down to within specifications can improve gas mileage as much as 15 percent. And your engine will last longer, too. Theoxygen sensoris a key part of your emissions system, and some estimates suggest that a faulty oxygen sensor can reduce fuel economy by as much...