How is the camshaft position sensor connected to the ECU?
The wiring harness should be routed away from the high-tension cable to prevent interference. This procedure will determine if the Camshaft Position Sensor is able to send signal to the ECU. This is done by measuring the voltage across the signal and ground wires of the sensor.
Why does my ECM 1 fuse keep blowing?
If the wires leading to the O2 sensor rub against the exhaust, it creates a ground; once the O2 sensor is grounded, the fuse to the ECM 1 blows. The O2 sensor must be installed in a different place to ensure the wires do not short-circuit.
Where is the fuse for the ECU located?
Locate the fuse for the ECU using the fuse diagram on the underside of the fuse panel cover. Pull the fuse for the ECU using the fuse pullers in the fuse panel. Turn the ignition to the “On” position but don’t crank the engine (it won’t start anyway).
How to fix a bad camshaft position sensor?
Apply a bit of engine oil to the o-ring of the new senor. Install the new camshaft position sensor and secure with the mounting bolt. Reconnect the wire connector to the sensor. Reconnect the negative battery terminal.
The wiring harness should be routed away from the high-tension cable to prevent interference. This procedure will determine if the Camshaft Position Sensor is able to send signal to the ECU. This is done by measuring the voltage across the signal and ground wires of the sensor.
How much does it cost to replace a camshaft sensor?
Camshaft Position Sensor Replacement Cost. To replace a camshaft position sensor, you can expect to pay anywhere from $120 to $300. Parts alone will run about $50 to $200. Labor costs will be in the range of $70 to $100 for professional replacement.
What causes the camshaft position sensor to be incorrect?
These are both a result of an improper amount of fuel being injected into the cylinders since the PCM is getting incorrect information from the camshaft position sensor.
What kind of circuit monitors the camshaft position?
The Camshaft Position Circuit is an electronic circuit consisting of the Camshaft Position Sensor, wiring harness, and the ECU (Engine Control Unit) or PCM (Power Control Module). It monitors a mechanical circuit (red zone in Fig.2) consisting of the camshaft, timing chain and/or belt.
What to do if your camshaft position sensor is bad?
If you have a two-wire, magnetic-type CMP sensor, set your multimeter to “AC volts.” Have an assistant turn the ignition key on without starting the engine. Check for the presence of power flowing through the circuit. Touch one of your probes to ground (any metal part on the engine) and the other probe to each one of the sensor wires.
How to test for continuity between positive and negative battery terminals?
So the lesson is, if you’re ever testing for electrical continuity between the battery’s positive and negative terminals (to see if there’s a short) make sure that all electrical items that would otherwise close a circuit are off/doors closed/boot closed.
What should I do if my battery sensor is not working?
If there is a fault related to the battery sensor, the first step is to check it visually for corrosion, cracks, physical damage, loose battery terminals or battery cable connections, corroded pins at the connector or broken wires.
What happens when the camshaft position sensor does not work?
3. Vehicle will not start The camshaft position sensor gathers information about the vehicle’s camshaft speed and sends it to the vehicle’s engine control module (ECM). The ECM uses this data to determine the timing of the ignition, as well as the timing of the fuel injection that the engine requires.
Can a sensor ground run into an ECU?
Grounds from the sensors generally run into the ecu unless using an older style ECU. I’ve seen much “debate” about the best way to ground ECUs, so I thought I’d take the time to explain some of the theory, because none of it is that difficult to understand.
Where does the ground go on a sensor?
If the sensor’s ground is not isolated from the body of the sensor and it has to screw onto the engine, for example many Nissan cam angle sensors, narrowband oxygen sensors and many knock sensors, then you don’t have a choice; you have to choose the star point ground at the engine.