Question about 2003 Chevrolet Suburban 2500

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Codes on an 8.1 in a 2003 Workhorse

This is throwing codes PO336, P0342, P0343 and P0650

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6 Suggested Answers

Molson02536
  • 3854 Answers

SOURCE: 2004 Chevy Silverado HD 2500

On many engines with distributor less ignition systems and sequential fuel injection, a camshaft position sensor is used to keep the engine's control module informed about the relative position of the crankshaft. By monitoring cam position (which allows the control module to determine when the intake and exhaust valves are opening and closing), the control module can use the cam position sensor's input along with that from the crankshaft position sensor to determine which cylinder in the engine's firing sequence is approaching top dead center. This information is then used by the engine control module to synchronize the pulsing of sequential fuel injectors so they match the firing order of the engine. On some applications, input from the camshaft position sensor is also required for ignition timing.
The camshaft position sensor may be magnetic or Hall effect, and mounted on the timing cover over the camshaft gear, on the end of the cylinder head in an overhead cam application, or in a special housing that replaces the distributor (in the case of some of the GM applications). Operation and diagnosis is essentially the same as that for a crankshaft position sensor.  

Re  check the wire harness and the sensor installation to the camshaft sensor in Bank #1 which is where the #1 cylinder is. Good luck and hope this adds some light to you question, keep me posted and be glad to help.

Posted on Jun 02, 2009

SOURCE: What are code p0342 and p0431

342 is camshaft position sensor and 431 is your catalytic converter may be getting weak. If this was my car I would do the 342 code and see if the other code for the cat comes back. Tell the shop fix the camshaft sensor. If the sensor is bad your car can still run but its possible you could set a cat code because
of it but on the other hand you cannot set a camshaft code because of a bad cat.

I am a smog tech in California

Posted on Aug 10, 2009

jonathancole
  • 127 Answers

SOURCE: engine codes P0650 and P0700

po650 malfuction idicator light control curcuit
po700 transmission control system (mil request)
malfuction indicator light is the check engine light
mil request is the same thing
hope this is helpful

Posted on Aug 14, 2009

  • 127 Answers

SOURCE: What does a P0342 code mean?

hallo
P0342 code means: camshaft position sensor- low imput. Check wiring (short to earth), if OK change camshaft position sensor.
Marko

Posted on Oct 09, 2009

freetek
  • 5568 Answers

SOURCE: I have a Hyundai 2000 Accent GL. Problem, engine

If these conform to the generic codes:
P0342 - Camshaft Position Sensor A - Bank 1 Circuit Low Input
P0460 - Fuel Level Sensor A Circuit Malfunction
If you wish to make this a DIY repair (shouldn't be too difficult) I recommend you locate a service manual to guide you but neither Haynes nor Chilton offer them. Check your local library since they occasionally have them available.

Posted on Nov 05, 2009

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CMV9
  • 594 Answers

SOURCE: 2003 dawoo what are these codes

code p0342 is referring to the cam shaft. i am not getting anything for the other code for your vehicle so i would start there.

Posted on Jun 08, 2010

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1 Answer

Why do my check engine light come on the code is 343 camshaft sensor is new


- Camshaft Position Sensor harness is open or shorted
P0343 - Camshaft Position Sensor 'A' Circuit High Input
WHEN A CODE DISCIRIPTION HAS CIRCUIT IN IT , IT HAS A WIRING PROBLEM



Read more: http://www.engine-codes.com/P0343.html

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If the fault detection circuit senses a voltage other than what is expected, the fault line status will change causing the P0650 code will set
Read more: http://engine-codes.com/p0650_pontiac.html#ixzz3KBuUP8Qv

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OBD II codes are specific to manufacturers and often specific vehicles. A Hyundai Accent P0650 may not be the same as a Hyundai Sonata P0650 because Hyundai loaded more diagnostic codes into the upscale Sonata.

Check with AZone or similar, they'll tell you the code description, and give you possible suspect causes to check.

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Hi I'm having the exact same problem.. I have replaced the MAF, the crank sensor, the MAP sensor everything in my 2001 Grand Prix 3800 has been replaced! I was wondering if you had fixed yours? And I also own another 2000 Grand Prix and took the brand new MAF out of that and it still was still dying. I had to clear the codes to restart. Please help

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1 Answer

What is code p0650 and what is mil control system


P0650 - Malfunction Indicator Lamp Control Circuit Malfunction

Possible causes- Harness or connectors for the MIL circuit is open or shorted. Check connectors to instrument cluster.
- MIL bulb may be faulty, check this first.
- Faulty ECM. Very rare that this is the problem.

Read more: http://engine-codes.com/p0650.html#ixzz27mKYd94I

Sep 28, 2012 | Cars & Trucks

1 Answer

Codes


I punched in code po336 for a bing search,
and it says that it could be
PO336
Crankshaft Position Sensor Signal Range / Performance
But it may be for another car.

What was your engine size and submodel? My reference on the Internet didn't have fault codes for your vehicle.

Jul 07, 2010 | 1997 Buick Skylark

1 Answer

2003 dawoo what are these codes


code p0342 is referring to the cam shaft. i am not getting anything for the other code for your vehicle so i would start there.

Jun 08, 2010 | 2001 Daewoo Nubira

1 Answer

OBD malfunction indicator light status on stored diagnostic trouble codes po325, po335, p1336 . Car will not pass OBD test.


CODE PO325 - KNOCK SENSOR. CODE PO335 -CRANK SHAFT POSITION SENSOR. CODE PO336 - I DID NOT SEE CODE PO336.

Aug 28, 2009 | 1997 Nissan.5 Altima

1 Answer

Bad oil smell +O2 sensor reading bad


Please VERIFY!? P034? NOT P0340? My research reveals you are correct.. there is no such code as P034!!!.. there is P0342 & P0343!! Both are CAM POSITION SENSOR codes. Perhaps this MIGHT help (no guarantee).. Disconnect both battery cables from the battery (+) & (-)... touch these cables together for 30 seconds (nohwere near the battery posts)... then reconnect them to the battery... see what happens. There may be 'JUNK' in the computer memory.. this will erase it and set the computer back to 'DEFAULT' RESET condition (that is, if the computer isn't the problem to begin with OR there's some other sensor/component (like the CAT (catalytic converter) which might be burned out and clogged up). Without actually diagnosising this vehicle myself, there's really no accurate way of pinpointing the problem. Hope this is helpful.

Jun 13, 2009 | 1999 Hyundai Accent

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