replaced camshaft position sensor but still get code

Replaced Camshaft Position Sensor But Still Get Code – Solve the Issue!

The vehicle’s camshaft monitors provide the engine control the ability to pinpoint the precise location of the crankshaft motion utilizing the crankshaft detector. A broken camshaft position sensor must be replaced when it becomes a problem. Yet, there is a chance that you “replaced camshaft position sensor but still get code” in extremely uncommon circumstances.

Here is all the information you require regarding this problem and how to quickly resolve it. This article will provide you with a quick overview of the causes of this issue and its potential solutions.

Why am I Still Getting a Fault Code After Replacing the Camshaft Position Sensor?

The Camshaft Location Sensor circuit is malfunctioning, according to the OBDII error number P0340.

It has to do with the complete sensor circuit, comprising the electrical wiring and the engine control module. You could occasionally not be able to resolve the problem by just changing the sensor because of this.

Many motorists believed that tampering with the CMP sensor’s signal may result in misfires and less-than-ideal fuel-to-air ratios.

  • It’s possible that the brand-new camshaft position sensor is flawed.
  • The electronics of the camshaft sensor have wiring difficulties. The wiring might have issues due to broken wires, incorrect sensor cabling order, poor grounds, weak electrical relationships, or all of the above.
  • The automobile’s PCM has a few mistakes.
  • The reluctor band is fractured or else compromised.
  • A malfunction involving the engine timing chain or interior car parts might trigger the error.

Did I Install the Camshaft Position Sensor Correctly?

An end-protruding cylindrical cylinder makes up the camshaft sensors. The protrusion frequently operates using the Hall concept, which causes the sensing voltage to vary in response to its closeness to the chain gear attached to the camshaft.

Naturally, this implies the fact that the cam detector is located close to the highest point of the car’s engine and is frequently installed in the combustion chamber, cylinder block, and timed cover.

When the vehicle has an engine cover, you might need to remove it. The camshaft detector can then be located at the timing protect, on the top of the cylinder head, which was or even on the engine’s block’s sides.

A wire connection will be hooked to it, and the device will be located close to the summit. The connection may have up to four wires.

The engine’s revolutions per minute are measured by the crankshaft detector as well as the CMP sensor, although the crank detector is regarded as the major sensor as well as the cam monitor as the additional sensor.

What to do After Replacing Camshaft Sensor?

After replacing the camshaft detector, be sure to get your automobile scanned with an OBD-II scanning by a skilled mechanic.

Without modification, the car’s computer can get false indications from the old detector, which would lead to drivability problems like cylinder misfire.

By doing this, any code messages will be removed, and the engine computer will be certain that the new sensor is sending accurate information. Of course, you may perform the reprogramming procedure yourself, provided you’re feeling comfortable and brave.

An error coding, yet, could still resurface even after a replacement sensor has been installed after being cleared using an OBD-II diagnostic tool. In such circumstances, the electrical link should be inspected since it could not be considered correctly created.

Think about substituting the camshaft detector once again if the linkage is sound, but the problem code still appears to be present.

What Controls Camshaft Position Sensor

What Controls Camshaft Position Sensor?

The camshaft detector operates using the Hall principle. On the camshaft, an internal gear is scanned. The Hall potential generated by the Hall IC inside the sensing head is altered by the ring gear’s movement.

The electrical voltage difference is communicated to the control unit, where it is assessed in order to gather the necessary data.

The engine control module (ECM) receives information about the vehicle’s valve speed from the camshaft position detector and processes it.

The ECM uses this data to calculate the timing for both the engine’s needed injection of gasoline in addition to the ignition timings.

Do you have to Relearn a Camshaft Position Sensor After Replacing?

Although the new sensor is brand new, and you could be fortunate and receive excellent performance right away, it is strongly advised to relearn the detector at this juncture so as to test the complete system appropriately.

  1. The OBD II reader should be connected to your car. The pin connection is often found beneath and to the driver’s doorway side beneath the steering column.
  2. Locate and choose the option to conduct a CASE relearn by following the guidelines for the item in question and the instructions on the screen.
  3. After the retraining is finished, remove the scanner and drive the car as usual.

Connect to an OBD scanner to reactivate the ECU after reintroducing the crankshaft indicators so that it can relearn its location and remove the problem messages.

What Happens If you Don’t Relearn a Camshaft Sensor?

The ECU is unable to determine precisely where to put the crankshaft when you don’t retrain the crankshaft location sensor.

Numerous issues, like the motor not beginning, the motor stalling, and the engine running rough, may result from this.

The ECU determines engine speed using the crankshaft location sensor. The ECU isn’t going to be able to time the ignition appropriately if it doesn’t have precise information regarding engine speed. The car’s engine may become resistant to starting as a result.

The ECU isn’t going to be able to time the ignition correctly if it lacks precise information regarding the crankshaft location. This can lead to the engine misfiring.

Are There any Software Updates or Resets Needed After Replacing the Camshaft Position Sensor?

To establish the ideal timing for ignite and the procedure, the ECM will use a fresh camshaft monitor plus the old crankshaft data.

To determine the correct pulse division, it is going to measure the interval between the signal impulses coming from this component and the sensing device and compare that interval to the information tables already in use.

Before concluding that a problem with the device itself is to blame if error codes start to occur after a camshaft sensing has been replaced, it is advisable to inspect all the wiring for any possible issues.

Variations in installation may need that the sensor relearns particular data contingent upon the assistance provided by the manufacturer and specialist. When the ECM needs to interpret fresh signals via detectors, this will cause the data stored there to be reset.

Owners should have their sensors reprogrammed at a nearby auto shop to prevent any trouble codes or a decline in engine performance brought on by low power circumstances.

Watch this one,

Video Credits – Brian E. Niskala

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