I have a 2009 f150 when I get over 45mph and try to Accelerate to say pass someone on the interstate it starts to sputter like a misfire. The CEL with blink then turn solid. Sometimes the code is for camshaft position sensor sometimes it will be cylinder H or E. I will clear dtc codes and go down the road floor it samething but no telling which code it will throw its never the same one. I looked at cylinder 5 which should be cylinder E and there is nothing wrong with the plug or coil pack and both are less than a year old. I changed crankshaft sensor did nothing. Prolly going to go ahead and change camshaft sensors next but looking for other ideas. Truck is just over 2k from being at 200k miles

 

How about posting some codes so we can further help you diagnose. Along with engine type.

 

I did what they read but i can post the codes p0341 and p0346- camshaft position sensor I mentioned in post
p0346 misfire
p0316 which is an O2 sensor
2009 f150 5.4l
I ran seaseafoam help clean engine and injectors out.

 

P0316 is not an O2 sensor, it's misfire on startup. P0341 and P0346 are camshaft position sensor codes, but not necessarily bad sensors.

 

p0135 is O2 sensor which is present. I understand the camshaft sensors may not be bad. One reason I posted the question here looking for possibilities not what I already know. Ideas and what not.

 

P0135 is O2 sensor heater circuit. Sensor itself or wiring.

https://www.obd-codes.com/p0135

https://www.obd-codes.com/p0341

https://www.obd-codes.com/p0346

Is the engine quiet? If not and it's making noise you may need a timing job.

 

if it was timing wouldn't I have this problem with it just idling or reving it in park or neutral?