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No cam position signal - 2001 Honda Accord

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Check that the cam shaft is turning ( broken timing belt/chain) check wiring and sensor position (air gap)

Posted on Apr 19, 2014

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Posted on Jan 02, 2017

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Where is camshaft position sensor on 2002 Pontiac grand am se ecotec 2.2


This vehicle does not have a cam sensor .The ICM provides a synthesized cam signal to the PCM based on these inputs. The PCM uses the cam signal to synchronize fuel injection.

The powertrain control module (PCM) supplies a signal on each of the ignition control (IC) timing control circuits to the ignition control module (ICM). The ICM fires the correct ignition coil at the correct time based on the signals. The ICM detects if cylinder 1 or cylinder 3 is on the compression stroke by sensing the secondary voltage and polarity of each side of the ignition coil. The ICM detects this voltage with sensing circuitry integrated into each ignition coil. The higher voltage is on the compressing cylinder. This is called compression sense ignition. The ICM provides a synthesized cam signal to the PCM based on these inputs. The PCM uses the cam signal to synchronize fuel injection.
This system consists of the following circuits:
• An ignition voltage circuit
• A ground circuit
• A camshaft position (CMP) sensor signal circuit
• An IC timing control circuit for cylinders #1 and #4
• An IC timing control B circuit for cylinders #2 and #3

DTC P0340
This ignition system does not use a conventional camshaft position (CMP) sensor that detects valve train position. The ignition controls module (ICM) detects when #1 or #3 cylinder has fired on the cylinders compression stroke using sensing circuitry integrated within each coil. The sensing circuit detects the polarity and the strength of the secondary voltage output, the higher output is always at the event cylinder. The ignition control module (ICM) sends a CMP signal to the powertrain control module (PCM) based on the voltage difference between the event and waste cylinder firing energy. This system is called compression sense ignition. By monitoring the CMP and crankshaft position (CKP) signals, the PCM can accurately time the operation of the fuel injectors. If the PCM receives an intermittent CMP signal from the ICM, the CMP Resync Counter on the scan tool will increment. When the PCM cannot use the information from the CMP signal, a DTC will set. DTC P0341 sets when the PCM detects too many CMP Resyncs within a certain amount of time.

Jul 13, 2017 | Pontiac Cars & Trucks

1 Answer

What is the the volts fore the came sensor


The cam sensor outputs voltage pulses when the engine is running. The sensor is powered by the engine's computer, which typically provides 5VDC to power the sensor. With the engine not running, turn on the ignition switch. A cam sensor has three connections: Power (5VDC), signal output (% or 0 VDC varies with cam position), and ground return. Measure the signal voltage from the cam sensor wiuth repsect to ground. If it is 5V, slightly turn the engine's crank with a wrench until the cam sensor signal drops to zero volts. You should be able to see the signal voiltage switch between 5V and 0V while turning the crank slowly. If so, the sensor is working properly. If the signal doesn't change, the sensor is likely defective and should be replaced. They do fail.

Dec 12, 2014 | Cars & Trucks

2 Answers

Pcm?


PCM= Powertrain Control Module. It is the brains of the car, it reads the sensor in put from all sensors including the cam shaft position sensor

May 14, 2014 | 2004 Toyota 4Runner

1 Answer

No cam signal at pcm


Recheck the cam sensor and the wires that connect to it.

Feb 12, 2014 | 2001 Dodge Durango

1 Answer

What are cam position sensors for 2005 honda accord 3.0L


Camshaft Position Sensor Camshaft Position Sensor Operation:
00158_camshaft_position_sensor.jpgA magnetic or hall effect sensor. It sends a signal to the computer relaying information about shaft speed, position and acceleration or deceleration. This information determines when the fuel/air mixture needs to be ignited and how much mixture is needed for the engine.

Nov 14, 2012 | Cars & Trucks

2 Answers

I have code po341 car will start and idle for 15 seconds and die and will start back up and do the same everytime


p0341 camshaft position sensor circuit range /performance didnt specify what vehicle but check the wiring and connection for the camshaft position sensor if looks good than problem with sensor not an expensive fix

Nov 23, 2011 | Cars & Trucks

1 Answer

My saturn is idoling high the machine says its cam sensor, im hearing theres not one what could it be if not cam sen


Camshaft Position Sensor

This vehicle does not have a Camshaft Position Sensor. The manufacture does make references to "CAM" in some of the trouble code descriptions but this is NOT a reference to a Camshaft Position Sensor.

Notes On System Inputs

The EI module does not receive a signal from the crankshaft position sensor. Instead the CPK sensor signal is being received and processed by the PCM. The El module does, however, contain circuitry to determine camshaft position without using a camshaft sensor, by use of compression sense ignition (CSI).

Apr 04, 2011 | 1997 Saturn SL

1 Answer

1998 saturn sc2 po341


P0341 - Camshaft Position Sensor Circuit Range/Performance

This P0341 code basically means that the powertrain control module (PCM) detected a problem with the camshaft signal. The camshaft position sensor (CPS) sends a specific signal to the PCM for Top Dead Center on the compression stroke as well as signals indicating the position of the cam sensor. This is accomplished through a reluctor wheel attached to the camshaft that passes by the cam sensor. Any time that the signal to the PCM is inconsistent with what the signal should be, this code is set. NOTE: this code can also be set by extended cranking periods.

Symptoms: The car will likely run with this code set, as it is often intermittent and also because the PCM can often operate the vehicle in "limp-in/limp-home" mode even with a cam sensor signal problem. There may be no noticeable symptoms other than:
* Poor fuel economy (if engine runs)
* Possible no start condition


Causes: A code P0341 may mean that one or more of the following has happened:
* Cam sensor wiring routed too close to spark plug wiring (causing interference)
* Poor wiring connection at cam sensor
* Poor wiring connection at PCM
* Bad cam sensor
* Damaged reluctor wheel

Possible Solutions: Often relacing the sensor fixes this code, but not necessarily. Therefore it's important to check the following:
* Check that the wiring isn't routed too close to any secondary ignition components (coil, spark plug wires, etc.)
* Visually inspect the wiring at the sensor for any burn marks, discoloration indicative of melting or chafing
* Visually inspect the cam sensor for damage
* Visually inspect the reluctor wheel through the cam sensor port (if possible) for any missing teeth or any damage
* If reluctor isn't visible from outside the engine, visual test can only be done by removing cam shaft or intake manifold (depending on engine design)
* If all checks out okay, then replace the sensor.

Related Camshaft Trouble Codes: P0340


Hope helps (remember to rate this answer).

Jan 03, 2011 | Saturn SC2 Cars & Trucks

1 Answer

Po341


This P0341 code basically means that the car detected a problem with the camshaft signal. The camshaft position sensor sends a specific signal to the car for Top Dead Center on the compression stroke as well as signals indicating the position of the cam sensor.

Most likely repair is to replace the cam sensor itself. If that doesn't cure it, come on back and we'll get a little dirt with the next possible solution.

Thanks for using FixYa, feel free to come back anytime for all your automotive needs.

Sep 05, 2010 | 2002 Chevrolet Astro

1 Answer

PO 341 code on 2002 chevy impala


Hi,
This P0341 code basically means that the powertrain control module (PCM) detected a problem with the camshaft signal. The camshaft position sensor (CPS) sends a specific signal to the PCM for Top Dead Center on the compression stroke as well as signals indicating the position of the cam sensor. This is accomplished through a reluctor wheel attached to the camshaft that passes by the cam sensor. Any time that the signal to the PCM is inconsistent with what the signal should be, this code is set.
NOTE: this code can also be set by extended cranking periods.
Here is a possible solution to the problem;
  • Check that the wiring isn't routed too close to any secondary ignition components (coil, spark plug wires, etc.)
  • Visually inspect the wiring at the sensor for any burn marks, discoloration indicative of melting or chafing
  • Visually inspect the cam sensor for damage
  • Visually inspect the reluctor wheel through the cam sensor port (if possible) for any missing teeth or any damage
  • If reluctor isn't visible from outside the engine, visual test can only be done by removing cam shaft or intake manifold (depending on engine design)
  • If all checks out okay, then replace the sensor.


Be cool!!!!

Aug 02, 2010 | 2002 Chevrolet Impala

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