Ford Mustang Ecoboost Forum banner

1 - 20 of 40 Posts

·
Registered
Joined
·
514 Posts
I did it because it went bad. Was close to home when car started acting up and already had the sensor because I was going to replace it for the later revision part based on various forum threads.
 

·
Registered
Joined
·
123 Posts
I changed mine out to remove a possible weak link.
 

·
Registered
Joined
·
578 Posts
I have not changed mine, as it is working fine. I have the digital dash and keep the A/F gauge up and regularly check it. I believe the issue mostly shows on WOT, so I do the occasional run on the highway to check that the A/F stays where it is supposed to. I also think that this is over reported and that the failure rate is not as bad as one would believe from the forums.
 

·
Registered
Joined
·
32 Posts
Discussion Starter #6
Mine have now driven 23.000 miles and nothing strange accurrance, but after read various ecoboost forums and the bad stories they told there Im a little bit worried!
 

·
Registered
Joined
·
1,046 Posts
I changed mine because I like tinkering with my car. I got the part on ebay for $20 and installed it myself, and now I have one less thing to worry about going bad.
 

·
Registered
Joined
·
92 Posts
Mine just arrived from CJPP. Changing it tomorrow.
 

·
Registered
Joined
·
110 Posts
I changed mine after reading a post that was linked here. I don't know if failures are widespread or if it was a case of CYOA on the part of a tuner, but for $20-$30, I thought it was cheap insurance...one less thing to worry about.
 

·
Registered
Joined
·
1,624 Posts
I hope you guys that are replacing the sensor for good measure realize that a new unproven part is statistically more likely to fail than a part that has been performing correctly for a period of time.

That is the nature of all manufactured items. An items failure rate is highest when new and as it is used the failure drops to a low constant failure rate until some time in the future the part starts to wear out and the failure go back up.

In the case of the fuel pressure sensor Ford has been using the same part with the same part number in all gasoline engines since 2010 and still are. The after market part everyone is swapping in has some inconsequential minor visual differences but there is no evidence that it is any more reliable than the factory part (and it could have a higher failure rate).

Dave
 

·
Registered
Joined
·
32 Posts
Discussion Starter #13
I also read on the internet that not only change the LPFS but also the Evap Purge Solenoid (FR3Z-9G297-H).
 

·
Registered
Joined
·
369 Posts
I’m with Dave on this one.
Of all the eco boosts we’ve gotten here at the shop only one needed the evap valve swapped out and none have had low pressure fuel sensor issues.
If you want to swap them out for peace of mind, have at it.
 

·
Super Moderator
Joined
·
2,873 Posts
I have popped codes for both of them. The fuel sensor got swapped by Ford on their dime, I did the evap valve myself.
 

·
Registered
Joined
·
1,624 Posts
I have popped codes for both of them. The fuel sensor got swapped by Ford on their dime, I did the evap valve myself.
That's the key; you got a code indicating there was an issue. Swapping either sensor with no symptoms or codes is not a good use of your resources in my book.

Dave
 

·
Super Moderator
Joined
·
2,873 Posts
I agree, but some people just want that peace of mind.
 

·
Registered
Joined
·
137 Posts
@dgc333 The fuel pressure sensor has indeed been shown to be an issue when data logging, FRP actual vs FRP desired is able to show if the sensor is functioning correctly. Many who have thrown the code and data logged these 2 parameters show inconsistencies between the 2 with the stock sensor, I've yet to see or hear from my tuner where the new sensor didn't fix the issue.

Not disagreeing with you that the stock sensor is probably fine on most cars, but it's such a cheap part that can have such a big impact on your motor, why not change it out for peace of mind?

I've yet to see any data logs from anyone with the updated sensor that shows FRP actual being less than FRP desired.
 

·
Registered
Joined
·
1,624 Posts
The issue is presuming that the aftermarket sensor is "updated". If it was "updated" the factory would be putting it in new vehicles which they are not.

There are some nonconsequential visual differences but no one has presented any evidence that there is anything about it that is functionally different or that it is more reliable.

I have been an engineer supporting manufacturing for over 40 years and every time you go to a different supplier for a part made to the exact same spec it is almost inevitable there will be visual differences. Considering the millions of this sensor Ford has put in all their gasoline engines for the past 10 years the only conclusion i can make is it is nothing more than a part from another supplier.

Dave
 
1 - 20 of 40 Posts
Top