My 2006 F 150 / 5.4 engine is showing a P016 engine code. This code is for crankshaft position - camshaft position correlation. I changed the variable valve timing solenoid but that did not fix the problem.. Anybody had this issue before and what did you do to fix it. My engine has 172,xxx miles on it and the oil is full.

Thanks for your help.
Jim Smith

 

Where's the rest of the code, they have to have 4 digits or characters after the "P".

 

If its p0016 crankshaft- camshaft correlation, which means signal generated by each sensor not close enough to be calculated. Signal my be missing ,open wires or shorted out . Or mechanical part broken/bent not within range to be compared with each other. In the case of cams sensor one for each side they sense fifth finger of phasor which can get bent . Crank sensor senses the larger toothed aluminum wheel inside timing cover mounted on crank shaft .
When the timing chain gets worn or has broken plastic guides ,the plastic gets ground up by chains /gears or timing wheel .. It can damage that aluminum wheel .
But we see damaged crank sensor wires at times since they are low on the engine , down by ac compressor . The connector is subject to dirt ,corrosion/oil. The cable to it is 2 conductor with a ground shield and has been known to corrode and short out . . These signals can be looked at by a scope and compared . Which takes a shop with a good scope.
You need to inspect your wires for broken or abraded/ grounded wires . clean all connectors with contact cleaner . You can ohm them out to pcm connectors and check them for grounding out .
Usually if the crank sensor is bad you can't start and no rpm signal will show during cranking . These sensors create their own signals from the metal fingers passing by them . So anything that breaks or distorts metal finger can mess this up .
You can replace all these sensors without removing timing cover . But firing a parts cannon may not work . Sometimes blaming the sensor is wrong , it may be telling you about a real failure .
You are in the zone for a timing job . But this may call for a pro type scanner that has a scope and a good tech . Like a launch/autel/snap on all quite expensive . Some shops have a variety of these. But a good tech is hard to find . You can find shops the just do diagnostics. Even the big shops send their problem cases to them .