Question about 2003 Hyundai Santa Fe

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My hyundai santefe won't start.

My 2001 hyundai santafe won't start. I scaned it and had this code, P0340, Camshaft Position sensor mulfunction. I have replaced the sensor, but still won't start. And there is no power suply to the injectors. what shd i do?

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  • Elijah Tabiri
    Elijah Tabiri Feb 11, 2009

    The engine turns alright, diesel fuel comes up to the injectors with pressure. but is like the injector does not open to spray into the chamber.There is compression in all the cylinders. the cam turns. I want to ask is there any way i can test the cam and crankshft sensors manuelly? I am using a LAUNCH X431 Diagnostic tool.Will I be able to test this sensors with that?

  • Elijah Tabiri
    Elijah Tabiri Feb 11, 2009

    The timing belt was actually the first item i checked. it is intact, the camshaft turns alright,n and there is compression.I gave it direct fuel from through the inlet manifold and it started for some seconds. diesel comes up to the injectors but does not spray.

  • Elijah Tabiri
    Elijah Tabiri Feb 13, 2009

    Yes the Vehicle stoped on the road and did not start again so we had to towed it to the garage.

  • Patrick Dennehy May 11, 2010

    Make sure cam is actually turning when cranking. Could be broken Timing belt/chain. Look into eng. with oil cap off if possible and watch for movement in rockers/valve train. Or remove one easily reached spark plug, and have someone crank while you hold your thumb over the hole. Is there air pumping past your thumb? Let us know. TT

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First of all, when you start, will it turn over at all or not? You say you have no power to the injectors. How did you verify this? If so, it's possible your fuel system fuse is burnt out. The fuel pump relay powers only the fuel pump. A separate relay and fuse take care of the injection system itself. Check those also. Until you know more about what the cam is doing, though, you might want to check it thoroughly. Also, just getting compression in one cylinder is not a verification of whether the cam is turning. There are bound to be more than one cylinder that will still build compression even if the cam is stopped. You might need to check more than one cylinder, or go as far as to do a compression test.

Posted on Feb 11, 2009

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  • Randall LaClaire Feb 11, 2009

    So, did you ever actually check the relays and fuses for the fuel system?

  • Randall LaClaire Feb 12, 2009

    Just to reiterate:
    There are pretty much only TWO possible reasons why your injectors are not spraying fuel

    Either the power to the injectors themselves is out (which again has nothing to do with the fuel pump relay. That relay strictly runs the pump, and not the rest of the injection system) which would be either the fuel SYSTEM relay or the fuel SYSTEM fuse.

    The only other possibility is that all of your injectors went bad at precisely the same moment, or they all became plugged at precisely the same moment, or you have a massive blockage of the fuel line just at the points where the lines enter each injector.

    I'm guessing odds on all of them going bad at once are pretty slim. Also, really unlikely the blockage.

    The final likelihood is that you have a broken wire in the harness that powers the injectors, or maybe the connector which plugs into them is corroded. There really aren't any other likely reasons that your injectors would be getting fuel, under pressure, but not actually injecting it into the cylinders.

    As for testing the camshaft position sensor, I haven't had any luck at all finding a manual test you can do. One final thought ... have you raised the back end of the vehicle recently or had it towed?


  • Randall LaClaire Feb 16, 2009

    Many vehicles, even some of the newest, have a fuel supply cut off switch which is activated when the vehicle is raised in the rear or front past a certain height. It's not as common on the newer vehicles, but the purpose of it was to prevent the vehicle being started in the event that someone tried to steal a car by towing, as well as being a safety feature to prevent the vehicle accidentally starting or dumping fuel in the event that the key was left in the run position. I'll do some checking to see if the santa fe is equipped with such a feature. In the meantime, check your owner manual to see. If so, it's possible that your initial problem might not be what is preventing it from getting fuel to the injectors.

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What are the probable causes of DTC P0340 other than a defective CPS?


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

Read more at: http://www.obd-codes.com/p0340
Copyright OBD-Codes.com

May 06, 2016 | Nissan Maxima Cars & Trucks

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Code p0340


P0340 Hyundai - Camshaft Position Sensor 'A' Circuit Malfunction Bank 1 Or Single Sensor Possible causes
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery

Read more: http://engine-codes.com/p0340_hyundai.html#ixzz338zFujgZ

May 29, 2014 | 2001 Hyundai Santa Fe

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P0340 99 jeep cherokee code


P0340 JEEP - Camshaft Position Sensor Circuit engine cylinder Bank 1 Sensor 1

Possible causes- 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

Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code.

Read more: http://engine-codes.com/p0340_jeep.html#ixzz25iQflrEb

Sep 06, 2012 | 1999 Jeep Grand Cherokee

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I keep getting a code P0340.Chrysler has reprogrammed the PCM for a long start issue.I cant seem to get anywhere with it.


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


Hope helps.

Apr 24, 2011 | 2003 Dodge Neon

2 Answers

Can u tell me what the problem of this code PO340


I have a 1999 BMW 740 il My SES light came on so I hooked up my OBD code reader p0340 - Camshaft Position Sensor Circuit Malfunction is what came up. so I went to the BMW parts department and bought the Camshaft Position Sensor.
I Replaced the with the new. My SES light was still on so I hooked up the OBD reader again hoping it may reset my SES light but it didn't what did happen is the OBD reader came up with the same code (p0340 - Camshaft Position Sensor Circuit Malfunction) witch is what I just replaced. now I'm at a loss. I'm not sure how to reset my SES light and if I just replaced the Camshaft Position Sensor why dose it the OBD code p0340 still come up. Any suggestions?

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1 Answer

Code p0340 need location on 2004 sebring 2.7 v6



P0340 OBD-II Trouble Code
Technical Description
Camshaft Position Sensor Circuit Malfunction


What does that mean? 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
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

Also, the cams/crank are out of alignment, thats why you are getting a cam position code (P0340). For more details about your model, you can visit autozone.com (free register)

Hope helped whit this (remember rated this help) Good luck.

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its at the cylinder head just near the camshaft!!!!!

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Hyundai santa fe 02 diesel wont start when very cold turns over but wont fire


I have just had the same problem but solved it.
Firstly, I went to Halfords and purchased a spray tin of Bradex Easy Start.
Then loosen off the air filter cover and give a quick spray inside.
Turn the engine over and bingo, it should start.

What you need to look for is whether the smoke from the exhaust is white. If it is, there is too much unburnt fuek in the engine and the problem lies with the glow plus.

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1 Answer

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P0340
Camshaft position sensor circuit
  • Most likely cause : Camshaft position sensor failed.
-----------------------------------
P1684
means the battery was disconnected(or had been drained to a low voltage) recently.


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