So I was one of the many to sit and wait for the TNTs arrival and downloaded it ASAP. My first impression was yeah this is ok, but doesn't run as well as the 4.11 on my truck. I have continued to play with adjustability and still can't find a sweet spot. So let me get to the issue. Shortly after downloading the TNT, I 'm driving down the highway and get a P0251 code. I thought dang, never happened before. This happened about the same time 50% of the board seemed to be having FCA problems, so I thought ok I'll change out the FCA. I continued to have this code pop up randomly for the next few months. Pretty annoying. Since I liked the 4.11 better, I went back. Did not have the adjustability, but ran better with no random P0251 code. What gives? Fast forward...... today I went back to TNT thinking I had an idea of how I wanted to set the adjustability. Within 5 minutes of my TNT drive, I got the stupid P0251. Dang it. Sorry, I'll get to the point...........

Has anyone been getting a P0251 with the TNT non R version at random intervals? Stopping to reset the code is getting to me!!

-Changed FCA
-Removed Quad completely
-Ordered R.P. gauge to monitor what pump may or may not be doing

 

P0251 Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector)

Sounds like a CP3 upgrade is needed!

 

An upgrade is most definitely a need anyways! The question is duals or a stage III single. Sounds like duals is an expensive option considering I would probably need 2 CP3s instead of one additional.

So P0251 isn't necessarily an FCA problem? Anyone have more insight? Why does this happen only with TNT and not 4.11?

Bryan

 

Demand for fuel isn't as strong.

 

My thinking too. The duration of the TNT is too much for the stock CP3 with 100hp injectors can handle.

BTW, the TNT level 1 starts at 100hp.

MikeyB

 

i dont have a problem at all, r/p hits around 24,000 at wot.it may fall a little behind when i jump on it , but it climbs right back up fairly quickly