Car Repair World

Vehicle Sensor Reference Guide Types Of Sensor In Your Vehicle Oxygen Sensors (O2) Throttle Position Sensor (TPS) Mass Air Flow Sensor (MAF) Engine Coolant Temperature Sensor (ECT) Intake Air Temperature Sensor (IAT) Exhaust Gas Recirculation (EGR) Most Common Engine Sensors understand the purpose and failure systems of most common sensors. Use your scantool and tech tip to diagram. Oxygen Sensors (O2) Purpose: Measure the amount of oxygen left in the exhaust stream to provide feedback to the computer about whether the air/fuel mixture is rich or lean. Symptoms: Poor fuel economy Rich fuel mixture Check Engine Light Failed emissions test Tech Tip: Test for O2 sensors in front of catalytic converter (S1B1 and S1B2 on your scantool). With the engine warm, graph the O2 sensor output. Rev the engine to approximately 2000 RPM. A good sensor will oscillate from below 0.2 volts to above 0.8 volts, looking approximately like a sine wave. A bad sensor will b...

Crankshaft Angle Sensor CAS CKS Replacement Car CAS Replacing Procedure Helpful Information A crankshaft positing sensor sends feedback data to the engine computer (PCM), when this sensor fails the engine will stall, which could be immediate or intermitted. Easy steps on how to replace an automotive engine crankshaft angle sensor (CAS or CKS), this information outlines a typical sensor replacement though configurations may vary the process is the same. Difficulty Scale: 4 of 10 Begin with the vehicle on level ground, safely hoisted and supported by jack stands, engine off (cold) with the emergency brake set. Step 1  - Locate the crankshaft angle sensor , some are positioned behind components such as the starter which will need to be removed to replace the sensor. Starter Step 2  - Before removing the starter disconnect the negative battery cable to avoid electrical damage. Removing Negative Battery Cable Step 3  - After disconnecting ...

Crankshaft Angle Sensor CKS CAS Working Of CAS/ CKS This article describes how an automotive crankshaft position sensor works. This information pertains to all vehicles except electric cars. A crankshaft position sensor (CKS) is used to reference crankshaft rotation as the engine is running while supplying feedback data to the main computer. This sensor is mounted near the crankshaft, flywheel or in the engine block depending on manufacturer. As the crankshaft spins it creates an electrical pulse pattern that changes with engine speed. This wavelength controls computer output circuits such as fuel injector pulse width and timing adjustments. The timer reluctor wheel is fastened to the crankshaft which is used by the sensor. Crankshaft Angle Sensor This sensor goes by different names depending on the manufacturer, crankshaft angle sensor, CKS sensor, crankshaft position sensor but performs the same function. When these sensors fail they can cause intermitted stalling, no s...