im sure you can find some one on here to let them borrow there PCM in florida but then again many dont own 5.4s

 

Maybe you can ask in the 5.4 forum or the F-150 forum. There are tons of 5.4's out there.

 

Great Idea, LOL https://www.ford-trucks.com/forums/1...l#post12131279

 

Im sorry but that sounds really far fetched....By the time I find someone nice enough to take their's out to plug into mine I could have already been a grandfather..

I'd like for someone to please tell me which of these codes could be the my trigger... Like my buddy said, I think one of these codes could be my only problem (I hope). But not sure where to start... Please help!!!

 

I'm sure something to this affect has been posted already, when I replaced the boots on my coils I had disconnected the battery. After I finished and reconnected the battery my X was all messed up, had CEL, OD light was flashing all sorts of wierd things. X would start and die, then ran rough, like yours. I left the battery disconnected all night and the next morning it was fine. Have no idea what the problem was but it was fine the next morning no lights and ran smooth

 

Well this explains what my issue could be.

I took my EX out mudding the day before my issues popped up....sorry to thread jack but we are almost having identical issues lol. Wonder if mud is my culprit

 

I know I have a serious electrical issue caused by water... is your truck doing the samething on the video?

 

Didn't watch it yet because I've been at work. Right when it starts it sounds great and runs fine then about 20 seconds in it sputters and acts weak and like I have no punch on the pedal. Then it shakes at 50+ if I get it at a current speed and I have to get on it a little to get it to stop then it just keeps does it off and on every time I punch it a little to get it to stop.


Seems similar enough lol

 

Have you checked the MAF sensor? Is the fuel pressure good?
Part 1 -How to Clean the MAF Sensor (Ford 4.2L, 4.6L, 5.4L).

 

Both O2 codes say the heater is at fault. Most of the time the heater is activated by ground. Meaning: a bad ground. It is odd that both are having the same issue with just the heater part of the sensor.

However, that fault will usually only give you poor MPG up and until the exhaust heats up enough to get the O2 "working" correctly. All the heaters do is make the sensors work quicker.



The EVAP Code Potential Symptoms (credit: OBD-II Trouble Code: P0443 Evaporative Emission Control System Purge Control Valve Circuit ) Emphasis mine.

P0443 trouble code symptoms could be just an malfunction indicator lamp (MIL) illumination. There may be no drivability problems at all. [b]But, it's also possible to have a lean condition or a rough running engine if the purge valve is stuck open.[b] Usually though, these symptoms are accompanied by other EVAP codes. Another symptom may be excessive pressure in the gas tank in the form of a "whooshing" sound when the cap is removed, indicating a purge valve that isn't working at all or stuck closed.

Causes

To cause a P0443, there has to be a problem with the purge control CIRCUIT, not necessarily the valve. Usually they are a unit housing the valve and the solenoid as an assembly. Or it could be comprised of a separate solenoid with vacuum lines to a purge valve. That said, it could be any of the following:

• Bad purge solenoid (internal short or open)
• Wiring harness chafing or rubbing another component causing short or open on control circuit
• Connector worn, broken or shorted due to water intrusion
• Driver circuit inside powertrain control module (PCM) is bad

If your poor performance issue isn't oil starvation related, it certainly appears electrical in nature. Have you removed the cowl below the wipers top see if there is any possibility that water may be entering the cab?

 

I know for a fact that water got in and around the wirering harnest around the coils.. Not sure what cap your refering to but none in the oil cap..

So where should I go from here? Should I get the 02 sensor?

 

He was talking about the cab with a B. As in make sure it hasn't gotten water in under the dash and into the wiring there.

 

i dont think its the o2 sensors on my navigator when i first got it it had 1 unpluged but it still ran fine just a check engine light

 

Jay, has it stopped raining?

Is everything in your engine compartment completely dried out now?

 

Yes, It has let up a bit.. I'm still stuck without a vehicle.. Not sure where to go from here.. Don't have much money so i'm careful about what parts I can buy.. I cant afford to buy anymore parts that are not gonna fix my issue.. I'm still caught on what my guy told me about it probably being one code that needs to be addressed to clear some of the other once.. I'm highly afraid of the transmission once as I know that could set me back a heavy ticket. I'm waiting to get payed Friday to send it to Ford to see what thry tell me. This has become a very stressful situation for both me and my wife.. School starts soon and my girls have to be picked up and dropped off daily.. I'm losing my marbles...