Question about 1998 Buick Century

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1998 Buick Century 3.1 engine

I am geting a code that reads po341 cmp sensor circuit out of range. What is a cmp sensor and where is it?

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  • micelialbert Mar 03, 2009

    I have the same code showing up but also a few other things listed such as spark plugs,timing belt,coil,so im not sure what route I should take to fix this problem the cheapest way possible.By the way,the car seems to be running fine.Thank you.

  • Anonymous Mar 18, 2014

    Camshaft sensor code

  • Anonymous Mar 27, 2014

    How many co2 sensors does a 2003 Buick Century have?

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  • Master
  • 421 Answers

Camshaft position sensor it is located on the engine block on the belt side of the motor there is also a crank position sensor that is located on that same side, that is behind the main belt pulley. basically the computer is sensing that these two sensors are out of sync with each other this is a common problem, and is corrected by replacing the camshaft position sensor in most cases. Otherwise check the connections and wiring to the sensor please rate -jeff

Posted on Sep 04, 2008

  • lizard_bliss Mar 30, 2011

    would love to see a diagram for us 'dummies'.

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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
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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 .

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OBDII PO139

Possible causes
- Timing belt or chain stretched or jumped
- Faulty Camshaft Position (CMP) Sensor
- Camshaft Position (CMP) Sensor harness is open or shorted
- Camshaft Position (CMP) Sensor circuit poor electrical connection.

Read more: http://engine-codes.com/p1391_chrysler.html#ixzz3UeAhEMOH

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Why does engine not stay running


You need Workshop / Garage to look at your problem , as it could be anything , so it's difficult to answer

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Camshaft position sensor A circuit range /performance bank 1 or single sensor

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Have enjine codes on 1996 chevy blazer 4.3 that read po339/po341 what is the recommentded fix


both codes refer to Crankshaft position sensor A code 339 is CKT Intermittent and 341 is CKT Range Performance. you may have to replace the sensor.

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Getting codes P0341, p0300, p0301, p0302, p0303 on my 2001 audi a4 2.8 quattro, how do i fix this


Hello! The Trouble codes are pointing at ONLY cylinders 1-2-and 3 (P0301, P0302, and P0303)...P0300 is telling you Random Misfires...P0341 is pointing at the Camshaft Positioning Sensor A (Bank One)...When you face the front of the engine, the Left Bank are cylinders 1, 2, and 3...Although TSB's are written for this problem that isn't much help since you'll pay for it anyway...

The solution is to replace the Camshaft Positioning Sensor A...Of course, check its connector first for bent, dirty or broken pins...Buy a can of Electronic Contact Spray and clean both male and female ends of the connector before buting a new sensor....Follow procedure below...Push two safety pins into the rear of the connector on the specified pin #'s...See diagrams below....Saailer


10_24_2011_3_19_41_pm.jpgSTANDARD MOTOR PRODUCTS Part # PC345.....Cost $80



10_24_2011_3_41_08_pm.jpg


10_24_2011_3_41_51_pm.jpg

  1. Connect a Digital Volt Meter to measure voltage across the CMP connector terminals 1 (B+) and 3 (Ground).
  2. Switch ignition to "ON", but Do NOT start engine.
  3. Measure voltage between terminals 1 and 3 . There should be a minimum 9.0 volts.
  4. Switch the ignition "OFF".
  5. If reading is not 9.0 volts replace the sensor...
  6. You'll have to remove the timing chain to replace it...
any questions send a comment...Guru...Saailer

Oct 24, 2011 | 2001 Audi A4

1 Answer

Po341 is it easy just to remove power steering to remove sensor


po341 according to my manual is CMP circuit performance

I do not understand why you think this has anything to do with the power steering sensor.

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Toyota ipsum 2002 check light comes on with code P1346.


Definition of Diagnostic Trouble Code P1346 Audi: Ignition Coil Power Output Stage 3 Short to B+ BMW: Misfire During Start Cylinder 3 Buick: Intake Camshaft Position [CMP] Sensor System Performance Cadillac: Intake Camshaft Position [CMP] Sensor System Performance Chevrolet: Intake Camshaft Position [CMP] Sensor System Performance Ford: Fuel Level Sensor B Circuit GMC: Intake Camshaft Position [CMP] Sensor System Performance Lexus: VVT Sensor Rang/Performance Problem (Bank 1) Lincoln: Fuel Level Sensor B Circuit Mazda: Fuel Level Sensor B Circuit Mercury: Fuel Level Sensor B Circuit Oldsmobile: Intake Camshaft Position [CMP] Sensor System Performance Pontiac: Intake Camshaft Position [CMP] Sensor System Performance Saturn: Intake Camshaft Position [CMP] Sensor System Performance Toyota: VVT Sensor /Camshaft Position Sensor Circuit Range/ Performance Problem (Bank 1) Volkswagen: Ignition Coil Power Output Stage 3 Short to B+

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Where is camshaft position sensor located on 3.1l buick century


HI. Your CMP will be located, just below the cam cover gasket rail, in front of the cam carrier.

Dec 15, 2009 | 1998 Buick Century

1 Answer

Service engine light


From the GM Factory service Manual:
P0341 - Camshaft Position (CMP) Sensor Performance
The other thing about this code, is that it can be caused by a faulty ignition module, or the cam sensor magnet on the timing chain gear, behind the engine front cover that the sensor mounts to. These possibilities would
require a bit more involved diagnosis than just replacing the sensor related
to the code.
I have done a tech. bulletin search for this code, and come up with nothing.

Again, need to get harness checked, and if wiring OK, further diagnosis of
the ignition system.

Mar 03, 2009 | 1998 Buick Century

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