acdii

There are 2 types of codes, soft set, and hard set. Soft sets, like a cylinder misfire, will stay for about 3 key cycles, then be cleared if there is no further occurrence. Hard codes are set from faults, such as a bad O2 sensor, or some other sensor that is sending false readings, and do not clear with key cycles.

If a soft code happens often, then eventually it will be hard set. Hard set codes can only be cleared with user interaction, such as a scan tool or programmer.

Oh and door latches do not set codes. Had to explain that to my dealer when my wife couldn't shut the passenger door on her Focus and was told no codes, cant fix because by the time she got it in, the door was closing fine.

rntonp

Thanks acdii. I understand the concept the way you explained it. However, any code that is important enough to be initiated/triggered in the first place are either important enough to KEEP or not be triggered in the first place OR program the SOFT codes to not be displayed UNTIL it becomes a HARD code.
Cheers,
Andy

goddard3100

The problem is with the injectors gumming up! Had the same issue ford could not figure it out so I brought it to my father in law. He simple throw in some injector cleaner ran the truck and the problem has never come back. I don't know why it wouldn't spit out codes for the this but ford need to get some more qualified people who can fix trucks with out a code telling them what's the problem. Some time you just have to go back to basics.

Sasquatch77

You are right - something all eco owners should remember are the basic mechanic solutions:
1) drill weep hole in intercooler
2) catch can - a nice to have, but not sure it is a must have
3) change spark plugs often (no more than 30k miles) and maintain gap of no more than .030
4) clean MAP and MAF sensors at each oil change
5) change oil every 3k miles (fuel dilution will hurt engine)

acdii

A misfire code can be a temporary code since if its a one time misfire due to ingestion of water from the IC, there is no real reason to keep it after a few cycles. In these cases when a misfire is detected and the soft code has been retrieved, the tech would pull the plug from that cylinder and inspect it, regap it and put it back in, or replace the plug. After that it would be returned and they would say, if it happens again....

In the majority of cases they are correct too. I had a 2013 Fusion Hybrid that was a problem child. At 4500 miles it stumbled and ran like crap and threw a code. After a while the engine cleared and the code went away. It then happened again a few days later and set a hard code. So in this case, the soft code became a hard code. Turned out all 4 plugs were fouled. Hard to imagine having all 4 spark plugs foul in a new engine with only 4500 miles on it. Long story short, I eventually got rid of said problem child.

Joseph81

In all my 40 yrs ive owned many of fords and chevys (wifes rides) and ive only had problems from fords others have touched before me , but ive not seen a chevy one that i can pop the hood and wonder .... well wtf that way??? Just people and preferences is all but now a days all makes are ****ing crazy with spotty *** build quality...
btw....I said f. It all and went back to a 1995 obd1 f150 ive rebuilt to a heavy half sleeper that'll tow 5th wheels and stomp most of the racetrack wondering ....wtf😜....lol
I'm just that guy

gDMJoe

Welcome!
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Akicita

for those of you looking for a fix for this instead of bailing, look at replacing the throttle body, a very common fail point and an extremely easy fix. 2014 F150 FX4 eco boost.