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Old Jan 31, 2007 | 05:24 PM
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joelc
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joelc

I have a 2000 f350 with 7.3 powerstroke. It runs ok stock but with my programmer I have a dead spot between 2600 and 3000 rpm. I have change fouel filter,used fuel additives,cleaners, lubricator. My computer shows no codes and diablo blames the truck, not the programmer.
Any suggestions?
 
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Old Jan 31, 2007 | 05:27 PM
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From: White Mnt's,New Hampshire
Originally Posted by joelc
I have a 2000 f350 with 7.3 powerstroke. It runs ok stock but with my programmer I have a dead spot between 2600 and 3000 rpm. I have change fouel filter,used fuel additives,cleaners, lubricator. My computer shows no codes and diablo blames the truck, not the programmer.
Any suggestions?
yes!!! get rid of that thing and get your self a DP tuner !!!!!


(sorry couldnt resist)

the diablo you have just dumps in fuel to make power..some times they work good and some times they dont..there made for any power stroke...some psd computers like them and some dont..but a dp tuner is a custom made tune for your psd computer...do you have gauges??if so what are the readings??
 

Last edited by ron's power stoke; Jan 31, 2007 at 05:34 PM.
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Old Jan 31, 2007 | 05:45 PM
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Well it may be that you are running out of fuel pressure. I am almost certain that you have a stock fuel system, and you would not believe how small the fuel passages are in these "checkvalves" that screw into the heads. When the engine is under a high load situation, it is very easy for the injectors to use up fuel pressure faster than the pump can force fuel through those small fittings.

Do you get any Check Engine Light situations?
 
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Old Jan 31, 2007 | 06:19 PM
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this is the same problem that I was haveing,I thought it was the injectors running out of oil. is there other problems that will cause issues like this.I was fixing to shell out 3k for a dual hpop. also Chris I changed over to a fully synthetic 5w 40 and alot of my problem went away, well it moved up the RPMs a little



Originally Posted by joelc
I have a 2000 f350 with 7.3 powerstroke. It runs ok stock but with my programmer I have a dead spot between 2600 and 3000 rpm. I have change fouel filter,used fuel additives,cleaners, lubricator. My computer shows no codes and diablo blames the truck, not the programmer.
Any suggestions?
 
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