2010 problems again...... - Dodge Diesel - Diesel Truck Resource Forums

4th Gen Engine and Drivetrain-2010 and Up 6.7 liter Engine and Drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

2010 problems again......

Old 03-14-2019, 12:35 PM
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2010 problems again......

First time posting on here. Posted on another site and didnt get much feedback so I thought maybe there were more active members on here.
Well a couple weeks ago I had a problem I couldnt solve until I unplugged the pedal and the problem went away. Went ahead and took it to a fuel injection service place and they replaced the MAF and all was well for about 5 days and couple hundred miles.
When I was on the highway while accelerating to pass someone the truck acted like someone shut the fuel off for a split second and then back on. It will does this continously almost like the truck is on a rev limiter or something. Very fast momentary off on. I can see on my RaceMe Ultra tuner that the desired RP and actual RP drop dramatically instantly and then back up and back down. I thought maybe the Fuel Rail Pressure Relief popped and then wouldnt hold and was causing it so I ordered a plug. Put the plug in and same thing so its not that. Only things left are the CP3 (fuel injection service tested its pressure and said it was very good. Dont remember specific numbers) FCA and pressure sensor. Any thoughts on what to try next? FCA? Sensor? At my wits end with this thing.
Truck fully deleted with RaceMe Ultra tuner, throttle blade delete, full 5" exhaust and different NON vgt turbo with H&S exhaust manifold.
Thoughts?
crny1 is offline  
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