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How to change camshaft position sensor - Cars & Trucks

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6ya6ya
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Posted on Jan 02, 2017

davesmith_37
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SOURCE: P0340 Code Camshaft Position Sensor


The Camshaft Position (CMP) Sensor detects the position of the camshaft in order to identifiy when piston No. 1 is on its compression stroke. The CMP sensor is used for ignition timing in the Ford DIS igntion system, but not in the EDIS igntion system. Both DIS/EDIS use the CMP signal for synchronizing the firing of sequential fuel injectors.

On the 3.0L vulcan engine, the CMP signal is generated by a single Hall-Effect magnetic switch, activated by a single "vane" spinning around by virture of a synchronized shaft which is driven by the camshaft. 

The CMP sensor & synchronizer/shaft are located behind the intake manifold (i.e., back near the firewall on a Ranger) on the top of the cylinder block. If you just need to replace the sensor, it is a simple job of unplugging the electrical connector and removing the screws holding the sensor in place. Here is a sketch of the sensor to give you an idea what to look for:

Posted on Feb 27, 2009

  • 218 Answers

SOURCE: How do I change Camshaft position sensor

THE CAMSHAFT SENSOR IS IN THE DISTRIBUTOR.

Posted on May 01, 2009

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  • 218 Answers

SOURCE: Camshaft Position Sensor Location

IF U GO TO THE RIGHT SIDE OF THE ENGINE AND LOOK 4 INCHES BEHIND THE BELT IT WILL BE ON TOP OF THE TIMING COVER.THE WIRES WILL BE RED/WHITE,BLACK,BROWN/WHITE

Posted on May 05, 2009

  • 1 Answer

SOURCE: camshaft position sensor

The camshaft position sensor is on the rear cylinder head on the left end (the serpentine belt end of the engine - passenger side). It is a son-of-a gun to get at. When it is bad or the connector is intermittant or bad, the symptom will be irregular idle from 500 to 750 RPM or so.

Posted on Aug 22, 2009

  • 144 Answers

SOURCE: Where is the camshaft position sensor located in a 2001 VW Passat

when you are looking at the engine pull off the plastic cover on top then the front cover that covers you timing belt there is a wire harness tha goes right to it in the left upper coner two ten mil bolts and it comes off careful not to drop bolts down in belt that could be bad. it is that easy

Posted on Sep 01, 2009

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06 Pontiac G6 2.4 I replaced the motor, started right up and ran great. Shut it off, now it won't start. I have no spark, and codes, po366 and po341 showed up. What's common to these 2 sensors?


DTC P0340: Intake CMP Sensor Circuit
DTC P0341: Intake Camshaft Position (CMP) Sensor Performance
DTC P0365: Exhaust Camshaft Position (CMP) Sensor Circuit
DTC P0366: Exhaust Camshaft Position (CMP) Sensor Performance

The five volt reference circuit .

The 4X camshaft position (CMP) sensor circuits consist of an engine control module (ECM) supplied 5-volt reference circuit, low reference circuit, and an output signal circuit. The CMP sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes of the teeth and slots of a 4-tooth reluctor wheel attached to the camshaft. As each reluctor wheel tooth rotates past the CMP sensor, the resulting change in the magnetic field is used by the sensor electronics to produce a digital output pulse. The sensor returns a digital ON/OFF DC voltage pulse of varying frequency, with 4 varying width output pulses per camshaft revolution that represent an image of the camshaft reluctor wheel. The frequency of the CMP sensor output depends on the velocity of the camshaft. The ECM decodes the narrow and wide tooth pattern to identify camshaft position. This information is then used to determine the optimum ignition and injection points of the engine. The ECM also uses CMP sensor output information to determine the camshaft relative position to the crankshaft, to control camshaft phasing, and for limp-home operation.
Do you know what the five volt reference circuit is .

How to check the 5v reference circuit for short to ground Cadillac

Mar 17, 2017 | Pontiac Cars & Trucks

1 Answer

How to change a csmshsft sensor on a 2008 cadillac srx


Before you replace a part you may or may not need . Why ? What code ? Does the vehicle run ? There has been a lot of confusion on these vehicles with variable valve timing , mixing up cam sensors with camshaft actuators
DTC P0008: Engine Position System Performance Bank 1

DTC P0009: Engine Position System Performance Bank 2
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft. Or, the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).


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Observe the scan tool CMP Desired, Actual, and Angle Variance parameters before a DTC sets. This may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.



DTC Descriptors
DTC P0010: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1

DTC P0013: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1

DTC P0020: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2

DTC P0023: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2

DTC P2088: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 1

DTC P2089: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 1

DTC P2090: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 1

DTC P2091: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 1

DTC P2092: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 2

DTC P2093: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 2

DTC P2094: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 2

DTC P2095: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 2
DTC P0341: Intake Camshaft Position (CMP) Sensor Performance Bank 1

DTC P0342: Intake Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 1

DTC P0343: Intake Camshaft Position (CMP) Sensor Circuit High Voltage Bank 1

DTC P0346: Intake Camshaft Position (CMP) Sensor Performance Bank 2

DTC P0347: Intake Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 2

DTC P0348: Intake Camshaft Position (CMP) Sensor Circuit High Voltage Bank 2

DTC P0366: Exhaust Camshaft Position (CMP) Sensor Performance Bank 1

DTC P0367: Exhaust Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 1

DTC P0368: Exhaust Camshaft Position (CMP) Sensor Circuit High Voltage Bank 1

DTC P0391: Exhaust Camshaft Position (CMP) Sensor Performance Bank 2

DTC P0392: Exhaust Camshaft Position (CMP) Sensor Circuit Low Voltage Bank 2

DTC P0393: Exhaust Camshaft Position (CMP) Sensor Circuit High Voltage Bank 2
I'm sorry but when dealing with these problems your best bet is to take your vehicle to a qualified repair shop , I have never see a DIY'ER correct the problem with these , an in the end always end up taking it to the dealer .

Jul 24, 2016 | 2008 Cadillac Srx

1 Answer

Where is the crankshaft position sensor on my 2010 srx 3 liters


Camshaft/Crankshaft Position Sensor Replacement - Cadillac Forums

www.cadillacforums.com/.../261074-camshaft-crankshaft-position-senso...

May 29, 2012 - 8 posts - ‎4 authors
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2004 Cadillac DTS crankshaft position sensors - YouTube

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Quick overview crankshaft position sensor replacement for a 2004 Cadillac DTS 4.6 liter North Star. ... 2003 Cadillac CTSCrank Position Sensor Part 3 Done!!! - Duration: 8:21. 2LateIWon 8,433 views. 8:21. How To Check .

Jan 16, 2016 | Cars & Trucks

2 Answers

I have a nissan murano 2005 with the code p1701 and a p0340 how can i use them to repair these codes


Nissan Murano P0340 2005 Nissan Murano - Camshaft Position Sensor Circuit
Possible causes- Faulty Camshaft Position Sensor-
Camshaft Position Sensor harness is open or shorted- Camshaft Position Sensor circuit poor electrical connection- Faulty starter motor- Starting system circuit-
Dead (Weak) battery
P1701- Fuel trim

I would suggest replacing the camshaft position sensor. When the sensor fails it can cause changes in fuel system that the computer can detect. So I suspect once the camshaft sensor ivreplaced that the P1701 code will be gone.
Cam Position Sensor Replacement Nissan Murano 3 5L

Sep 20, 2015 | Nissan Cars & Trucks

2 Answers

My truck sonoma gmc 2001 dont past the emission test


Definition of Diagnostic Trouble Code P1345 Audi: Ignition Coil Power Output Stage 3 Short to Ground BMW: Misfire Cylinder 2 with Fuel Cut-Off Buick: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Cadillac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Chevrolet: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Ford: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) GMC: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Isuzu: Crankshaft Position - Camshaft Position Correlation Kia: No SGC Signal (1.6L) Lexus: Variable Valve Timing / CMP Sensor Range / Performance Lincoln: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Mazda: Cylinder Discrimination Signal (from CMP sensor) Mercury: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Oldsmobile: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Pontiac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Saturn: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Toyota: Variable Valve Timing / CMP Sensor Range / Performance Volkswagen: Ignition Coil Power Output Stage 3 Short to Ground

Jul 19, 2015 | GMC Cars & Trucks

1 Answer

I changed out the MAP sensor,and the idle air sensor on my 2006 Ford Taurus. This was before I had the fault code read at a dealer. Code came back as P0340, and P0430 Band 2 cat worn out. I had the cam...


P0340 FORD - Camshaft Position Sensor Circuit Bank 1 Sensor 1Possible causes- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
P0340 FORD Description The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.

When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.

When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
P0430, main catalyst is worn out.

Dec 04, 2012 | 2006 Ford Taurus

1 Answer

Do you have to remove the cam gear to change the camshaft senaor.


Courtesy of a Beetle forum.

The camshaft position sensor is located at the front of the cylinder head under the timing belt cover. On 2.0L models, the camshaft position sensor is located behind the camshaft sprocket and is equipped with a pigtail lead and a remote connector. On 1.8L turbo models, the camshaft position sensor is located at the front of the intake camshaft. check the terminals in the connector and the wires leading to the sensor for looseness and breaks. Repair as required.

Before checking the camshaft position sensor, check the voltage supply and ground circuits from the ECM. Dosconnect the electrical connector from the camshaft position sensor and connect a voltmeter to terminals 1 and 3 at the harness connector from the camshaft position sensor and connect a voltmeter to terminals 1 and 3 at the harness connector. Turn the ignition key On - the voltage should read approximately 5.0 volts. If the voltage is incorrect, check the wiring from the camshaft position sensor to the ECM. If the circuits are good, have the ECM checked at a dealer service department or other properly equipped repair facility.

To check the camshaft position sensor operation, reconnect hte connector to the camshaft position sensor and using a suitable probe, backprobe terminal no. 2 of the camshaft position sensor connector. Connect the positive lead of a voltmeter to the probe and the negative lead to a good engine ground point. Turn the ignition key On. Rotate the engine slowly with a breaker bar and socket attached to the crankshaft pulley center bolt while watching the meter. The voltage should fluctuate between zero volts and 10.0 volts as the vanes in the reluctor wheel past the sensor. If the test results are incorrect, replace the camshaft position sensor. Note: Rotate the engine slowly through at least two complete revolutions. Removing the spark plugs from the engine will make the crankshaft much easier to turn. Warning: If you remove the spark plugs, unplug the primary (low voltage) electrical connector(s) from the ignition coil(s) to disable the ignition system

Jul 11, 2012 | Cars & Trucks

1 Answer

My car is showing PO344 (Camshaft Position Sensor A Circuit Intermittent) as a problem it's having... I replaced the camshaft sensor about 2 years ago when I was having a similar problem; could the sensor...


All ways, the camshaft position sensor signal sent to the ECM is intermittent

The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Powertrain Control Module (PCM) or Electronic Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.

When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.

When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.

Check thos DTC diagnostic and possible solutions about P0344 - Camshaft Position Sensor Circuit Intermittent

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine Stall

Possible causes
- Harness or connectors (The sensor circuit is open or shorted)
- Camshaft position sensor may be faulty
- Camshaft (Intake) may be damage
- Starter motor may be faulty
- Starting system circuit
- Dead (Weak) battery

Possible solution
- Charge battery
- Repair harness or connector
- Replaced Camshaft Position Sensor.
Tech notes
- Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code.


Hope this helps.

Mar 27, 2011 | Dodge Stratus Cars & Trucks

1 Answer

I received a P0340 on my 1995 Nissan Altima. It says I need to replace the Camshaft sensor. The dealers say that my car does not have one in it and that it may be in the distributor itself. Is this true....


They may be right. I cannot find the part. here is what the manual says:


REMOVAL & INSTALLATION The camshaft position sensor is located inside the distributor. On some distributors, the camshaft position sensor is not serviceable (replacement parts may not be available separately). If the camshaft position sensor is serviceable, use the following procedure.

  1. Remove the distributor cap and wires.
  2. Remove the rotor.
  3. Remove the camshaft position sensor cap.
  4. Remove the camshaft position sensor mounting screws.
  5. Carefully remove the camshaft position sensor.

To install:
  1. Position the camshaft position sensor in the distributor and tighten the mounting screws securely.
  2. Install the camshaft position sensor cap.
  3. Install the rotor.
  4. Install the distributor cap and wires.

Sep 27, 2010 | 1995 Nissan Altima

1 Answer

How do you check and change a camshaft position


The camshaft sensor wouldn't explain the clattering noise. But a timing chain would explain both. Clattering from a loose chain and the camshaft sensor code from when the chain broke and the camshafts stopped turning.

Aug 02, 2010 | 2000 Chevrolet Tracker

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