Question about 1995 Ford Mustang

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My 1995 mustang is throwing code PO240 saying camm sensor circuit something. i replaced the camm sensor, crank sensor, crank sensor connector and the ecm. no clue on what it could be. if you have any answers please let me know

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I wouldn't expect a professional to replace all you mentioned,so did you just throw parts at it yourself and why?
Other than a MIL Lamp and one code,what are the issues?

Posted on Sep 17, 2010

  • 3 more comments 
  • muhles90 Sep 17, 2010

    No I was told to change these parts by an ASE certified technician who I am friends with and I am also a state certified technician so I'm completely clueless on what i am doing. My main problems are that it idles rough and from 55-65 mph the motor vibrates. When my friend hooked it up to his scanner it said unable to detect cylinders from the same code.

  • Anonymous Sep 17, 2010

    Between the two of you,both knowlegable as you stated,what tests were performed and how were they done. Are you following a factory diagnostic chart or tree or are you beyond that? Are you using an oscilloscope on these components, one at a time,before replacing. Too many items to fail around the same time!
    Have you checked the mechanical condition of the engine. Go back to basics. Did you do a cylinder leak down or consider cam wear or bearing issues.
    Are you sure the vibration is in the motor and not the drivetrain?

  • muhles90 Sep 17, 2010

    no the only test done were from a high end mac scan tool. the motor only has 25000 miles on it so i wouldn't suspect any wear on the cam i could be wrong. i really haven't had much time to perform a cylinder compression test or any other diagnostic testing. it kind of stumped both of us. i figured it was just the cam sensor since thats what the code was for then again it was also saying unable to detect cylinders. By the way if this helps its also a 3.8 v6

  • Anonymous Sep 17, 2010

    I will keep getting back to you, but what concerns me,is your ASE friend having issues with this. Codes don't tell you what to replace. They are sensors out range, for a reason. Codes only point you to an area, to start your diagnostic testing. You need to know the systems your working on, and have experience or reference material to follow. The ability to use logic is the key to solving your issues. Your not stumped,your need to know what does work and stick to basics.Work on the engine drivability first,then the higher speed vibration. Always learn every components function,then test it. Get a wiring diagram, if you need to back probe to test live data.

  • muhles90 Sep 18, 2010

    thanks for the help. like i said i just havent had time to have my car worked on especially since its my only means of transport. my buddies shop has been busy lately so hes just going by what ive told him its doing and the code. He hasn't been able to actually look it for further diagnosis. if you come up with any explanations email me at muhles90@hotmail.com. thanks again

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Have a 2001 won't start no spark new crank and can and coil pack code keeps saying its no reference signal from crank position sensor


U need to reset your crankshaft position sensor and camm seror also needs to b reset or they need to b replaced

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I have 113 and 157 coad on a 1995 mustang how can i fix it a5.0


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Po705 2001 mustang auto


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1990 ford mustang lx 5.0L Code 54 How do i fix this


Fault Code 54

Description: No fuel injector sync pickup signal during engine rotation
Power loss light: On
Limp-in mode: Logic module will guess at injector timing

Possible Causes:
Bad connection or wiring - Check the wiring and connections between the hall effect sensor (located underneath the distributer cap) and the logic module. Check the continuity of the two 3 conductor cables coming out of the sensor--these are prone to fatiguing and breaking inside the insulation where they exit the sensor if the cables are not properly tied down. You may be able to resolder them. Clean and regrease any corroded connectors with dielectric grease and repair any shorts.

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Trigger Parameters
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Good luck.

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1 Answer

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Bank 2 is the right side as you look at the egine from the front of the car.

Causes
A code P0161 may mean that one or more of the following has happened:
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Possible Solutions
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Nov 13, 2009 | 1995 Ford Mustang

1 Answer

For a while my Mustang has been idling rough when I first start it in the morning. Yesterday it idled on down and died and now it won't crank at all. It threw a camshaft sensor fault, and a lean fault, I...


First I need to know for sure what you mean by "it won't crank at all" and "it never cranks". these terms are associated with a batery/starter/charging system concern. However if the engine is turning over but not starting just sputters and wheezes then there are three thing you need to know; does it have spark? Is it getting fuel and if so how much? and compression?, is it pulling in enough air (air filter)? cam tming?

Oct 18, 2009 | 1995 Ford Mustang

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:
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  • the camshaft position sensor may have failed
  • the PCM may have failed
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Possible SolutionsWith a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
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  • 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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