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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.

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Hi, I have a stock 99 Cummins that has a intank lift pump(before I owned the truck) I recently put the iQuad on and when I created a tune, I can upload my tune if need be, but I would be about 13psi of boost then slowly give it throttle it will just jump up to about 25/27psi. The truck almost bucks, but once you pass that “surging” point it pulls very hard. What would make it jump psi so fast? And no I do not a have a fuel pressure gauge. 

Edited by Lowcummins
Mistake on spelling

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Post the tune and a datalog of the issue.

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It will even do it in the stock tunes provide, the transmission bucks really bad. After Tune level 4 

Please post a datalog of the issue.  

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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.