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Re: most common cause for code P0340 of 95 Ranger
Hi, the cam shaft sensor will be located Under the hood, center, upper engine area, mounted behind
rear of intake manifold, in the engine block.
This is a magnetic or hall effect sensor. It sends
a signal to the computer relaying information about shaft speed,
position and acceleration or deceleration. This information determines
when the fuel/air mixture needs to be ignited and how much mixture is
needed for the engine.
The possible causes of failure will be faulty housing or faulty wires as well. A faulty ECM could trigger a false alarm as well. this is highly unlikely but, possible in most cases. The most reported reasons is flat out sensor failure.
Trouble Code Conditions: Engine started, and the PCM detected the CMP sensor signal was missing or it was erratic. Possible Causes:
CMP circuit open
CMP circuit short to GND
CMP circuit short to voltage
SIG RTN open (VR sensor)
CMP GND open (Hall-effect sensor)
CMP circuit short to CMP2 circuit (if equipped)
CMP incorrectly installed (Hall-effect sensor)
The CMP sensor, also known as the Cylinder Identification (CID) sensor, provides camshaft position information, called the CMP or CID signal, which is used by the Powertrain Control Module (PCM) for fuel and ignition system synchronization.
The sensor is located at the front of the engine in the bore formerly occupied by the distributor
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I'm pretty sure that sensor is a two wire, which produces an AC volt signal back to the computer. You would test it with an analog volt meter while the engine is cranking or running. It could be a problem with the object the sensor is supposed to be "watching" such as the end of the cam shaft.
This is a case of which came first.
The stalling is most likely caused by your Cam Sensor. The description for Diagnostic Test Code (DTC) P0340 is "cam sensor circuit malfunction" This is a VERY COMMON problem on 7.3L diesel engines. Ford has had a lot of trouble with these.
The description for DTC P0470 is "exhaust back-pressure sensor circuit malfunction" This code can be caused by the EBP sensor, the circuits to the EBP sensor or a faulty Powertrain Control Module (PCM)
The description of DTC P1211 is "Injection Control Pressure (ICP) above or below desired" This can be caused by the engine stalling. It can also be caused by several other things, including low engine oil level or a possible faulty PCM. (Check you engine oil level FIRST.)
The troubleshooting charts needed to properly diagnose DTCs P0470 and P1211 depend on whether these codes are Key-On-Engine-Off (KOEO), Key-On-Engine-Running (KOER), or "continuous memory" codes. If you retrieved these codes with a generic OBD scan tool, then they are definately present in "continuous memory". However, a scan tool with the capabilities to read KOEO and KOER codes MUST be used to determine if these are "HARD" or "INTERMIITTENT" faults. The troubleshooting steps vary greatly depending on this information.
Personally, I would start with the lowest number code first (P0340). Replace the cam sensor. Please note: this is the MOST LIKELY cause of the problem, but not the only POSSIBLE cause. Then clear all the fault codes and drive the truck to see if this or the other codes return.
Your vehicle timing chain jumped a sprocket
spinning a bearing means that the bearing does not get enough oil between it and, it's rod; causing the "babbet" a soft slippery metal lining the bearing; to heat up and, weld it's self to the crankshaft or. piston rod
The Camshaft Position (CMP) Sensor detects the position of the camshaft in order to identifiy when piston No. 1 is on its compression stroke. The CMP sensor is used for ignition timing in the Ford DIS igntion system, but not in the EDIS igntion system. Both DIS/EDIS use the CMP signal for synchronizing the firing of sequential fuel injectors.
On the 3.0L vulcan engine, the CMP signal is generated by a single Hall-Effect magnetic switch, activated by a single "vane" spinning around by virture of a synchronized shaft which is driven by the camshaft.
The CMP sensor & synchronizer/shaft are located behind the intake manifold (i.e., back near the firewall on a Ranger) on the top of the cylinder block. If you just need to replace the sensor, it is a simple job of unplugging the electrical connector and removing the screws holding the sensor in place. Here is a sketch of the sensor to give you an idea what to look for:
The Code P0340 on your Stratus is :
Camshaft Position Sensor Loss signal.
Ok, The first step is check tha condittion on the connector.
For corrosion, bent pins or damaged wires.
If you found that everything is ok.
Replace the Cam Position Sensor.
The Cam Position Sensor, Is common that the Cam fail on this Vehicle and similars of this.
Tha Cam position sensor Is located:
At end of the engine head, driver side. Is attached with 4, 10mm
screw, and the connector at the center of the sensor.
I hope this help on your problem.
Thank you for use fixya...