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Power Strokes
6.7 Tech
P191 code...AGAIN!
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[QUOTE="Spindrift, post: 1084338, member: 872"] Two months ago I reported on a P191 and a P228F code. At that time, I had a couple of issues. One: with very little foot into the throttle, I felt a sudden engine RPM surge. It was a millisecond, almost like someone had just sprayed a little shot of starting fluid into my intake. Within a day, this progressed to engine RPMs dropping off to the point the truck stalled and wouldn't immediately restart. I changed the fuel rail pressure sensor and the fuel rail pressure regulator which are both found on the driver's side fuel rail. Fast forward to this week. I'm beginning to experience that same millisecond surge at times. Truck hasn't died on me yet but while I had it hooked up to my Auto Enginuity scanning software last night, the engine started to run a little rough then cleared up. I took a screen shot of both the live data grid and the DTC screen. The P228F code that really seemed to kill the truck last time, hasn't come back...yet. What do you make of this? What direction should I go in next? 47K on the clock. [/QUOTE]
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P191 code...AGAIN!
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