Question about 1996 Ford Taurus

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IF MY GROUND WIRE WAS NOT DISCONNECTED WHILE MY CAM SHAFT SENSOR WAS INSTALLED WOULD I STILL FAIL MY EMISSION? I FAILED EMISSION BECAUSE OF MY CAM SHAFT POSITION SENSOR, SO I BOUGHT A NEW ONE HAD IT INSTALLED BUT FAILED AGAIN. THEN MY FRIEND REMEMBERED HE DID NOT DISCONNECT GROUND WIRE.... SO HE DID IT TO "RESET" THE COMPUTER... WILL I PASS NOW?

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  • Ford Master
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It should pass if the problem was erased from the computer. You should have received a "check engine " light warning about a problem. The light should be off now that the computer is cleared.

I would say that you should ask what Code number was indicated for your problem. I find it interesting that this particular sensor would allow the engine to continue to run if the sensor was bad. Also it may be a good idea to drive 40-50 Miles on the E-way to allow the Catalytics to heat up and stabilize after running so long with a bad part.

If you still have problems with the test, there are a few additives that are suppose to help the car pass the test while the chemical is in the tank. I hope my solution is very helpful to you.

Posted on Mar 23, 2011

Testimonial: "YOU ARE AWESOME!!!!!"

  • DENEEN BOEDER Mar 23, 2011

    THANK YOU I AM GOING TO TRY THAT... YEA THE SENSOR LITERALLY CRUMBLED IN MY FRIENDS HAND WHEN HE WAS TAKING IT OFF!

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Posted on Jan 02, 2017

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Code P0016 on toyota sienna 2006


code p 0016 refers to crankshaft (CKP) position/cam shaft (CMP)position --bank 1 sensor A---correlation===causes --wiring--CKP sensor ---CMP sensor --mechanical fault
what that means that when the piston is in a certain and reports to the ECM then the camshaft sensor has to report the position of the cam shaft so that the two are in the correct position in relation to each other ( camshfat timing)
could be problem wires , dirty connections or failing sensors
The mechanical fault could be that the camshaft advance /retard operation has failed and throwing the correlation out

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2005 Cadillac won't start. no ignition fire. codes po300,po014,po340,po341, po345, po346, po420, po430, po171, po174


codes p 0014, 0340, 0341, 0345, 0346 all refer to the cam shaft position sensor==causes include-- advance mechanism faulty - CMP sensor --insecure cam rotor --wiring short to ground --air gap--ECM
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05 kia Sedona cranking and not starting


Trace the power using the wiring diagrams. Pull out the main relay. Then turn the key on. Push the main relay back in to see it it clicks as you push it in. If it does, then interrogate the relay socket to see if it is has both hot terminals with the key on. If it doesn't, do the same but also check for the ground signal from the pcm when the key is on.

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Jan 04, 2018 | Kia Sedona Cars & Trucks

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I have a 2003 kia sedona van 3.5 liter that jumped time. I reset the timing put a new belt on it and it ran good for 35-45 min. Then it cut off, and wouldn't start back up. It has an OBD2 code for cam...


cam sensor fail can be crank sensor fail engine will run with cam sensor fail but crank it will not fire. also recheck the timing belt settings you fit the timing belt and run engine till warm then recheck the belt adjustment to make sure its in line and at recommended tightness.

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PO102 and PO340 on 1997 GMC Jimmy


PO102 = mass airflow circuit low. Means there's a problem with the mass airflow sensor or circuit. Could be the sensor is disconnected, dirty, or faulty. PO340 = camshaft position sensor circuit. Could be ground wire disconnection, camshaft position sensor failed, PCM is failing, or even the crankshaft position sensor has failed. Good luck. Let us know how it turns out.

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2 Answers

I HAVE A 99 CHRYSLER LHS AND IT SHUT DOWN AT IDLE AND TOOK TIME TO START BUT IT DID AND RAN LIKE **** SO THE ENGINE LIGHT CAME ON P0340 CAME UP SO I CHANGED THE CAM SENSOR BUT CAR STILL RUN LIKE **** I...


Try clearing the code and also disconnect the battery for a couple min. I had a car that had this problem. It did the same thing when the cam sensor was changed. I disconnected the battery and made the ecu relearn.

Its worth a shot, my next thing would be to check the coils.

Mar 09, 2011 | 1999 Chrysler 300M

2 Answers

I have a diagnostic code 340 and 320 on a 1997 Jeep Cherokee. What might the problem be?


DTC P0340 - Camshaft Position Sensor Circuit Malfunction
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

DTC P0320 also have with this wrong.

Jul 13, 2010 | 1997 Jeep Grand Cherokee

1 Answer

I have a 98 Fordwindstar 3.8 . It failed emission on code P0340 . I replaced the cam shaft position sensor it still shows code P0340 what else could it be?


the input to the sensor must also be checked. this link provides some diagnostic procedures. diagnosis for camshaft and crankshaft sensors are similar, as stated in the article.

http://www.aa1car.com/library/crank_sensors.htm

Jun 10, 2010 | 1998 Ford Windstar

1 Answer

My Hyundai Santa Fe 2004 doesn't shift down from overdrive when driving at 70 mph. Recently replaced the crankshaft sensor and timing belt. It is an automatic and the other gears seem to shift alright....


You might try testing the tps. It may have a dead spot at the high end of the throttle opening. Make sure the resistance continues to change as you open the throttle all the way.

Throttle Position Sensor

Operation The throttle position sensor is a rotating type variable resistor that rotates with the throttle body-s throttle shaft to sense the throttle valve angle. As the throttle shaft rotates, the throttle angle of the sensor changes and the ECM/PCM detects the throttle valve opening based on the TPS output voltage.
Removal & Installation
  1. Disconnect the negative battery cable.
  2. Disconnect the sensor connector.
  3. Remove the sensor retaining screws. Remove the sensor from its mounting.
To install:
  1. Installation is the reverse of the removal procedure.
Testing 2.4L Engine
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 1 (sensor ground) and terminal 2 (sensor power).
  3. Specification should be 3.5-6.5 kohm.
  4. Connect and analog ohmmeter between terminal 1 (sensor ground) and terminal 3 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.
2.7L Engine
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 2 (sensor ground) and terminal 1 (sensor power).
  3. Specification should be 3.5-6.5 kohm.
  4. Connect and analog ohmmeter between terminal 2 (sensor ground) and terminal 3 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 2 (sensor ground) and terminal 1 (sensor power).
  3. Specification should be 1.6-2.4 kohm.
  4. Connect and analog ohmmeter between terminal 2 (sensor ground) and terminal 3 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.
3.5L Engine
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 3 (sensor ground) and terminal 1 (sensor power).
  3. Specification should be 3.5-6.5 kohm.
  4. Connect and analog ohmmeter between terminal 3 (sensor ground) and terminal 2 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.

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Sep 24, 2017 | 2004 Hyundai Santa Fe

1 Answer

Error code po340 for a 2002 hyundai elantra


Here is what I could find on your P0340 error code:
CausesA 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 SolutionsWith 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
Sounds like since you have replaced both the camshaft and crank shaft sensors you need to look at the PCM.  Go down the line of possible solutions and don't replace the PCM unless nothing else works obviously.  I hope this helps but it looks like you are looking at getting a new PCM.  Good luck.  Thanks for rating my response and for using FixYa!

May 27, 2009 | Hyundai Motor 2002 Elantra

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