Crank sensor symptoms

Watch the video of the replacement job 2004 Hyundai Sonata Optima V6 2 7 crankshaft position sensor location and...

Here's a link to what your crankshaft sensor looks like. Duralast Crankshaft Position Sensor SU4127 ReadReviews onDuralast SU4127 The Crankshaft Position Sensoris located: Under hood, center, upper engine area, mounted in front passenger side of engine block.Here's another link on replacing your sensor.
Repair Guides Electronic Engine Controls Crankshaft Position ckp Sensor...

Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine Stall
P0343 Chevrolet Description
The Camshaft Position (CMP) Sensor sensor works in conjunction with a 1X reluctor wheel on the camshaft. The Powertrain Control Module (PCM) provides a 12 volt power supply to the CMP sensor as well as a ground and a signal circuit.
The CMP sensor determines whether a cylinder is on a firing stroke or on an exhaust stroke. As the camshaft rotates, the reluctor wheel interrupts a magnetic field produced by a magnet within the sensor. The sensors internal circuitry detects this and produces a signal which the PCM reads. The PCM uses this 1X signal in combination with the Crankshaft Position sensor 24X signal in order to determine crankshaft position and stroke. This diagnostic for the Camshaft Position sensor tests for a loss of Camshaft Position sensor signal.
Observe that as long as the Crankshaft Position sensor 24X signal is available, the engine will start. The PCM can determine top dead center for all cylinders by using the Crankshaft Position sensor 24X signal alone. The Camshaft Position sensor 1X signal is used by the PCM to determine if the cylinder at top dead center is on the firing stroke, or the exhaust stroke. The system attempts synchronization and looks for an increase in engine speed indicating the engine started. If the PCM does not detect an increase in engine speed, the PCM incorrectly synchronized to the exhaust stroke and will re-sync to the opposite cam position. A slightly longer cranking time may be a symptom of this condition.

Read more: http://engine-codes.com/p0343_chevrolet.html#ixzz31FPYjyRM

This could possibly be he Crankshaft position sensor. your best rout would be to have the car put on a diagnostic machine to determine which sensor is faulty.

The Camshaft Position Sensor and the Crankshaft Position Sensor can exhibit some of the same symptoms. Checking the Sensor's output is the best way to determine which has failed, but this won't work on an intermittently failing sensor, unless you can monitor the sensor output with the vehicle running.

Failing Symptoms:
Intermittent stalling, but starts right back up
Sometimes, longer than normal cranking times
Check engine light P0340

Failed Symptoms:
Check engine light P0340
No start, no spark

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

ITS ABOVE THE STARTER.YOU HAVE TO REMOVE STARTER TO GET TO CRANKSHAFT SENSOR.

could be a bad crank sensor, a bad crank sensor will let car run for a while then shut down and will not start for 10 to 15 min. and it will repeat this cycle if not fixed.the crankshaft position sensor provides the ignition module and pcm with a crankshaft position signal. the module uses this signal to determine spark for each cylinder. the pcm uses this signal for proper timing of engine.

Hi there,

You don't actually mention whether your engine STARTS?

The SNSR fuse covers the following components:

- Oxygen (HO2) Sensor
- Camshaft position sensor
- Crankshaft position sensor
- Idle Speed Con Actuator

So, there is obviously a problem in one (or more) of these circuits.

Due to the new type OBII Diagnostics on the Tiburon, you will need to take the vehicle to your nearest Hyundai Service dealer and have your CODES scanned from your vehicle's computer. This will determine where the actual fault/s are.

However, if you're technically inclined, I can show you one possible way to 'manually' extract the diagnostic codes from your vehicle's computer, by accessing the Data Connector under the dashboard (above either driver or passenger knee).

The data connector looks something like this:



Let me know if you'd like to try and solve yourself, and I'll provide you with further instructions.

Cheers,

Scott

Crankshaft and Camshaft Position Sensors Camshaft Position Sensor Engine timing is determined from the relationship between the crankshaft and camshaft. This relationship is maintained by a timing chain or timing belt. The Engine Management System does not control engine timing but it does monitor the relative position and speed of these shafts by monitoring signals generated by sensors. The Engine Management System (EMS) uses signals generated by the camshaft position sensor to synchronize fuel injection to the valve sequence and for the on-board diagnostic procedure for misfire detection. The EMS energizes the injector at or near the time the intake valve opens. For misfire diagnosis, the EMS compares the number of camshaft sensor reference pulses and the number of crankshaft position sensor reference pulses received. If the EMS receives an incorrect number of pulses Diagnostic Trouble Codes (DTC’s) should be stored in the EMS.
If the camshaft position sensor or circuit is faulty most engines will start. Some engine management systems will then default to a pre-programmed injector firing sequence. All injectors may be energized simultaneously or all of the injectors on one bank may be energized at the same time. If the CMP data is required for misfire detection and reliable CMP data is not present misfire detection would probably be suspended.
Related Symptoms The following symptoms can be caused by an intermittent wiring connection or faulty signal to the EMS:

• Extended crank time with a cold engine
• Intermittent rough running
• Unstable idle
• Bucking
• Hesitation
• Stumble
• Chuggle
• Poor fuel economy
• Stalling on acceleration

Crankshaft Position Sensor Engine speed is a very important input to the Engine Management System (EMS). Crankshaft speed and position are the basis for many calculations made by the computer. Crankshaft position values are transmitted to the computer by pickup coils also known as Permanent Magnet (P/M) generators, hall-effect sensors or optical sensors. The Crankshaft Position Sensor (CKP) also known as engine speed sensor is located in close proximity to the crankshaft.
In addition the EMS uses minute variations in the CKP sensor data to determine engine misfire. The EMS uses this information in conjunction with the camshaft position sensor to perform misfire diagnostics.
Related Symptoms: No Start/Intermittent Start Condition – Can be caused by a faulty crankshaft position sensor due to loose connections, bad grounds, high resistance in the circuit, or opens in the circuit

crank sensor is a component used in an internal combustion engine to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control ignition system timing and other engine parameters. Before electronic crank sensors were available, the distributor would have to be manually adjusted to a timing mark on the engine.

The crank sensor can be used in combination with a similar camshaft position sensor to monitor the relationship between the pistons and valves in the engine, which is particularly important in engines with variable valve timing. It is also commonly the primary source for the measurement of engine speed in revolutions per minute.

Crank sensors in engines are usually comprised of magnets and an inductive coil. They are principally based on the Hall effect. Common mounting locations include the main crank pulley, the flywheel, or occasionally on the crankshaft itself.

Some engines, such as GM's Premium V family utilise crank position sensors which read a reluctor ring integral to the Harmonic Balancer. This is a much more accurate method of determining the position of the crankshaft, and allows the computer to determine within a few degrees the exact position of the crankshaft (and thereby all connected components) at any given time.