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I have a 2011 6.7 with 330k. I have a p0093 (large fuel leak detected) only when hauling a heavy load. Truck will shut off and turn key off then on and it starts right back up. It acts like it stalls. My vcv is clean and no stuck injector codes. Always run hotshots edt and im not sure what the issue is. It is tuned and deleted. There’s a new fuel rail regulator installed, but I’m not seeing any large external leaks and it’s very frustrating. Ships can’t seem to figure it out and think pump may be just wore out or the rail on the driver side could be bad. The pump also seems to not be able to keep up on the frp pressure side when pulling. Pump will commmadn 29,000 and the truck will be at 22. But will spike up once you take your foot off the throttle.
Any help is much appreciated
Last edited by nater756; Dec 19, 2023 at 06:15 PM.
I'm gonna say this again, as many posters seem to forget. It is very helpful for folks reading your post if you also include the English of what a p0093 is. I'm not going to go look it up just to be able to comment with possible assistance.
That's a lot of miles... Could possibly be your CP4 is getting tired but did a copy and paste for you...
Code P0093 on Powerstroke 6.7 is set when the PCM detects fuel pressure exceeding calibrated limits. Possible causes are leaking fuel injector(s), faulty high pressure fuel pump, faulty fuel volume control valve solenoid, faulty fuel pressure control solenoid valve, faulty pcm, wiring harness short or open circuit, faulty fuel rail pressure sensor
I'm gonna say this again, as many posters seem to forget. It is very helpful for folks reading your post if you also include the English of what a p0093 is. I'm not going to go look it up just to be able to comment with possible assistance.
yes, ended up swapping the pump for a dcr because I read about some cp4 pumps just being wore out and not building enough pressure under load but also not sending metal shavings everywhere thru the system. Since I’ve changed the dcr pump in January of 24 I haven’t had a single issue
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