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6.7 fuel pressure at cp3!!

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  • AH64ID
    AH64ID

    The CP3 cares more about flow than pressure. All 3rd gen and 4th gens thru 2018 use the CP3.    Stock is 8-10 at idle and 6-8 cruise. It can dip down to 4-5 under normal operation and is fine.

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I dont know what pressure your truck needs but the vp trucks are all 2nd gen 5.9', 24v. 3rd gens have the CP3.

4 hours ago, PaulArthur1 said:

Just kind of wondering what red light or too low of fuel pressure would be for 6.7. I know factory specs is 11.5 and I'm normally about ten. But I know 3rd gen I believe that 10 psi is way too low. I think they have the VP pump, unsure.


The CP3 cares more about flow than pressure. All 3rd gen and 4th gens thru 2018 use the CP3. 
 

Stock is 8-10 at idle and 6-8 cruise. It can dip down to 4-5 under normal operation and is fine.  I believe the Bosch spec even allows for some vacuums, but positive pressure is the recommendation. I set the warning light on my 05 to 3 psi and only saw it with COLD fuel, that was with 3 fuel filters and 150 rwhp over stock. 

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.