Question about 2003 Oldsmobile Alero

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Where is the camshaft sensor on the 2003 alero 2.2L engine. I am getting a code PO340 - engine is starting and running fine.

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You have to pull the starter off, thats the crank sensor

Posted on Aug 02, 2009


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Chevy equinox 05 lost engine power ch engine light flashed & smoke outta exaust. gave code po340

Trouble Code: P0340

Camshaft Position (CMP) Sensor Circuit

Possible Causes:

The following conditions may cause this DTC to set:

Incorrect harness routing near secondary ignition componentsIgnition coil arcing to wiring harness or ignition control (IC) module--Inspect the ignition coils for cracks, carbon tracking, or other signs of damage.Camshaft reluctor wheel damageThe sensor coming in contact with the reluctor wheelForeign material passing between the sensor and the reluctor wheelExcessive camshaft end-play

Trouble Code: P0340

Camshaft Position (CMP) Sensor Circuit

Possible Causes:

Inspect the 16-way engine harness to fuel injector harness connector, the CMP sensor connector, and the ECM connector for corrosion.With a DTC set, the engine may crank for an extended period of time at start-up.

Jan 05, 2013 | 2003 Nissan Altima

1 Answer

2003 Hyundai Santa Fe Still Will Not Start PO320 PO340

code p 0320 refers to crank shaft position sensor (CKP)/engine speed (RPM ) sensor---circuit malfunction====causes ---wiring---CKP/RPM sensor ---ECM
code p 0340 refers to camshaft position sensor (CMP) sensor A bank 1---circuit malfunction===causes wiring---CMP sensor ---ECM
following engine work , it is always best to check that all of the harness connections were assemble properly
check for broken wires during the work

Apr 29, 2017 | 2003 Hyundai Santa Fe

1 Answer

Got code po340 on 2008 Chrysler PT cruiser. Runs great sometimes when engine light on & rough at other times like not getting gas. Engine light does not come on every day either. Cam sensor or timing...

P0340: Camshaft Position Sensor A - Bank 1 Circuit Malfunction

- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery

Feb 08, 2012 | 2008 Chrysler Pt Cruiser

2 Answers

PO340 Hard starting.


Jun 03, 2011 | 2003 Chrysler Town & Country

2 Answers

It is a 2003 oldsmobile alero w/ a 2;2 , it complains about po340 or cam psition sensor, but it does not have a cps, then if it does not have a cps what could be the problem

Cam position signal is generated by the ICM which sends it to the ECM (engine computer) your engine will start and run without a CMP signal but will set a code The CPM is on the top left side of cylinder head mounted to ignition coil housing

May 08, 2011 | 2003 Oldsmobile Alero

1 Answer

2003 sebring 2.4l ck engin light on code po340 can you help

P0340 - Camshaft Position Sensor Circuit Malfunction

This indicates that a problem was detected in the camshaft position sensor circuit. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it.

Symptoms can include:
* Hard starting or no start
* Rough running / misfiring
* Loss of engine power

Causes: A code P0340 could mean one or more of the following has happened:
* a wire or connector in the circuit could be grounded/shorted/broken
* the camshaft position sensor may have failed
* the PCM may have failed
* there exists an open circuit
* the crankshaft position sensor may have failed

Possible Solutions: With a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
* Visually inspect all the wiring and connectors in the circuit
* Check for continuity in the circuit wiring
* Check the operation (voltage) of the camshaft position sensor
* Replace the camshaft position sensor as required
* Check the crankshaft position circuit as well
* Replace circuit wiring and/or connectors as required
* Diagnose/replace the PCM as required

Test it and keep us updated.

Mar 11, 2011 | 2004 Chrysler Sebring

2 Answers

Po340 code will not start occasionally then engine light comes on and thats the code that shows

tht is a camshaft sensor code. you probablyhave a sensor just starting to go bad and when it does the truck won't start no more. if you want to look atthe wire haness going to the cam sensor and if it looks good thaan swap the cam sensor.

also if you give the size engine you have i can give you a test to do with a meter to check it. but most of the time if thevehicle is running you can't tell. it has to be broke to tet it. but to re assure you i istall alot of cam sensor nd also crank sensor. so it is a very common problem...goodluckand ask any more question you have.

Sep 25, 2009 | 2001 Jeep Grand Cherokee

1 Answer

1998 Ford Windstar, no start with out pushing on throttle, some times not then, runs ok after it starts. have codes, PO340 & PO401

po401 is egr flow insufficiant ( the egr needs removed and cleaned also clean where it mounts to engine. po340 is camshaft position sensor A- bank 1 curcuit malfunction. it is a bad camshaft sensor.

Sep 20, 2009 | 1998 Ford Windstar

1 Answer

2003 suzuki xl7

It is not unusual for a camshaft sensor (or crankshaft position sensor) to fail. They are replaceable. If the onboard computer does not get the correct input it cannot control the engine timing correctly and automatically shuts down.

Jul 14, 2009 | Oldsmobile Alero Cars & Trucks

3 Answers

Code PO340

P0340 is a Crankshaft Position Sensor error. It determines firing order and is most likely the cause of your problem. It's mounted near the oil filter on the engine block. Below is a picture of how it appears in your car. Best of luck.


Jul 13, 2009 | 2005 Chrysler PT Cruiser

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