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On a 2.4L engine if the PCM receives a signal from the crank sensor & not from the cam sensor, and I have new sensors & good wiring, could the problem be a timing belt, wont start.

The car has no spark,ran find day before,next day start car,ran for a couple seconds & died.

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Yes the belt could be the problem, but you have provided so little information it is a guess at best.

Posted on Dec 20, 2016

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My 95 Jeep Grand Cherokee keeps shutting off while driving. Sometimes I can put it in neutral and restart the engine while rolling. Most times, not. After 5-10 minuets and as many times cranking, it will...


54 - Sync Pick-Up Signal Not Detected (Camshaft Position Sensor/Ignition Pickup). recheck to see if power to sensor. make sure wire is in good shape, to cam sensor. 11 - No Crank Reference Signal At Power control module, crank shaft sensor. check to see if your getting signal from pcm. Good-day!

May 20, 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 IS THE CODE P0341


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.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook 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

Mar 07, 2012 | 1996 Saturn SL

1 Answer

96 vw golf p0341 error code


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


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.


Check this diagnostic test (click over image for zoom)...

zjlimited_743.gif


Hope this helps (remember to rate this free answer).

Sep 27, 2011 | 1996 Volkswagen Golf

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

I am trying to test the crank sensor on my 99 intrepid and need to know how to test


No-Start Diagnosis
The diagnostic procedure for EI (electronic ignition) systems varies depending on the vehicle make and model year. Always follow the procedure recommended in the vehicle manufacturer's service manual.
The following procedure is based on Chrysler EI systems. The crankshaft timing sensor and camshaft reference sensor in these systems are modified Hall-effect switches.
If a crank or cam sensor fails, the engine will not start. both of these sensor circuits can be checked with a voltmeter or lab scope.
If the sensors are receiving the correct amount of voltage and have good low-resistance ground circuits, their output should be a pulsing digital signal or voltmeter reading while the engine is cranking.
If any of these conditions do not exist, the circuit needs to be repaired or the sensor needs to be replaced. When the engine fails to start, follow these steps:
  1. Check for fault codes 11 and 43.
    • Code 11, "Ignition Reference Signal," could be caused by a defective camshaft reference signal or crankshaft timing sensor signal.
    • Code 43 is caused by low primary current in coil number 1, 2 or 3.
  2. With the engine cranking, check the voltage from the orange wire to ground on the crankshaft timing sensor and the camshaft reference sensor. fr_24.13.gif Crankshaft timing and camshaft reference sensor terminals.
    • Over 7V is satisfactory.
    • If the voltage is less than specified, repeat the test with the voltmeter connected from PCM (powertrain control module) terminal 7 to ground.
    • If the voltage is satisfactory at terminal 7 but low at the sensor orange wire, repair the open circuit or high resistance in the orange wire.
    • If the voltage is low at terminal 7, the PCM may need replacement.
      • Be sure 12V are supplied to the PCM terminal 3 with the ignition switch off or on, and 12 V must be supplied to PCM terminal 9 with the ignition switch on.
      • Check PCM ground connections on terminals 11 and 12 before PCM replacement.
  3. With the ignition switch on, check the voltage drop across the ground circuit (black/light blue wire) on the crankshaft timing sensor and the camshaft reference sensor.
    • A reading below 0.2V is satisfactory.
NOTE When using a digital voltmeter to check a crankshaft or camshaft sensor signal, crank the engine a very small amount at a time and observe the voltmeter. The voltmeter reading should cycle from almost 0 volts to a highter voltage of about 5 volts. Since digital voltmeters do not react instantly, it is difficult to see the change in voltmeter reading if the engine is cranked continually.
  1. If the readings in the previous two steps are satisfactory, connect a lab scope or digital voltmeter from the gray/black wire on the crankshaft timing sensor and the tan/yellow wire on the camshaft reference sensor to ground. fr_24.14.gif Lab scope patterns from the camshaft and crankshaft position sensors.
    • When the engine is cranking, a digital pattern should be displayed or the voltmeter should cycle between 0 and 5 volts.
    • If the voltage does not cycle, sensor replacement is required.
    • Each sensor voltage signal should cycle from low voltage to high voltage as the engine is cranked.
A no-start condition can occur if the PCM "locks up."
  • In step 2 above, if 0 volts is indicated the PCM may be faulty or it may be locked up.
  • If the PCM is locked up it will not store a fault code for the reason.
  • Basically, the PCM will lock up when it goes into a safeguard routine if the 9-volt or 5-volt reference voltage shorts to ground. This shuts down the PCM to protect it. Since it shuts down, no DTCs (Diagnostic trouble code) are stored.
  • The engine will not start as long as the ground is present. An intermittent ground will cause the engine to stop running.
  • Attempting to restart the engine without cycling the ignition switch to the full LOCK position will not start the engine, even if the ground is lifted.
    • Cycle the ignition switch to the LOCK position and wait about 5 to 10 seconds.
    • If the ground is lifted, the PCM will reset and the engine will start and run until the ground occurs again.
  • On 1996 and new SBEC III and JTEC engine controllers, there are two 5-volt reference signals. The sensors that require 5 volts are separated, thus If this signal shorts to ground the engine will still stop running, but for the first time a DTC can be set.
  • Also note, if the 9-volt reference voltage is opened, there will be no DTC stored for the crankshaft or camshaft positions sensors. With an open circuit the PCM cannot tell if the engine is cranking or not. The diagnostic routing does not begin until the PCM senses engine cranking.

Nov 10, 2009 | 1999 Dodge Intrepid

1 Answer

1999 mitsubishi eclipse 2.0L na. no start. will crank. no power to coil pack. no codes. cam and crank sensor replaced. still no start or spark.


On this model engine, the power to the coil pack is delivered directly from the power transistors located inside the PCM.
If you are not getting the signal to fire going into the coil, verify you are getting a good waveform from the crank angle sensor, and that the wiring from it to the PCM is intact. If the crank sensor is delivering signal to the PCM, and the PCM is not generating pulse via the internal power transistors, the PCM has failed (the power transistors blow open, it is fairly common on this Chrysler PCM).

Oct 30, 2009 | 1999 Mitsubishi Eclipse

1 Answer

2001 jeep grand cherokee no start, no cam signal or ASD control from pcm


IF YOU PULL OUT CAM SENSOR YOU HAVE TO PUT A TOOTH PICK IN THE TWO HOLES ON THE TOP AND THEN PUT IT BACK IN AND FACE IT TO THE BACK OF THE ENGINE.KING OF 4.0

May 09, 2009 | 1999 Jeep Grand Cherokee

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