Stalls p0340 can you please tell me code p0340 no cam signal to pcm. Thank you,

DTC P0340 will set if the PCM voltage on cylinder #4 signal wire is not pulled to ground (cam signal pulse) when:
Diagnostic Aids
Important: A cam pulse missing may not affect engine operation.
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An open or high resistance on the #1 plug wire or plug will result in DTC P0340 setting.

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Inspect the EIS towers and plug the wire connections for corrosion or other signs of poor retention at connections.

The electronic ignition (EI) module supplies a signal to the PCM whenever it determines that the #4 cylinder fired on its compression stroke. Because of opposite coil tower polarity, the simultaneous fir of #1 and #4 cylinders are of opposite polarity as well. Under most conditions, except decel, the waste spark cylinder fires before the compression cylinder in sequence. The EI module can determine this polarity sequence and voltage amplitude by using capacitive pickup plates located under the 1/4 coil. If the module senses a positive to negative sequence and high negative spike when #4 is on TDC, it pulls the PCM cam signal to ground signaling that #4 has just fired on compression. This signal along with the double pulse received from the CKP sensor, synchronizes spark and fuel timing.
Beside plugs , plug wires need to be replaced as well !

DTC code is P0340 no cam signal at PCM. Chrysler always used to say replace the cam and crank sensors together..wouldn't pay our warranty time at dealer unless we replaced both.

At $1000.00 USD I will not guess on the PCM nor should you..

• If you want to dig into the timing belt you can but I would start by replacing the dizzy, if it were me. No junkyard parts for this. Re-manufactured if not new.

• Hope this helps.

regards,Tony

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 pcm is picking up a signal that it is not detecting a signal from your cam sensor. Have it replaced. Car will not start without it.

Code P1391 Loss of crank or cam sensors,P0340 No cam signal at the pcm. I would replace the crank sensor first. Your cam sensor is part of the dist. on 5.2/5.9 engines.
Hope that helps.

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!

OK.. HI.

The codes you have they refer to:
P0340. No cam signal at the PCM
P0622. Generator field not switching properly. " Charging system"
P1388. Auto shutdown relay control circuit.

""""""""NOTE"""""""""
"" P0340" This code , cam sensor make the car long start or not start, conditions.