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Old 01-30-2014, 06:55 PM
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Is it safe to upgrade my injectors

I am in dire need of fixing a few things with my truck. My MPG has consistantly dropped in the last year. It has gone from 15-16 down to 11.5mpg. All calculations have been done by hand and my speedo is calibrated within 2-3mph.

I have been seeing a P0272 (Cyl 4 contribution balance low) code for quite sometime and I feel that this is a result of the injector. The truck is on its original injectors with 327,145 current miles. I know they are worn out and tired.

I know my FICM is starting to get weak as some mornings when its pretty cold (18-30F) it has dropped below 45 volts.

My plan is to send my FICM to FICMRepair.com and have it fixed along with the Atlas 40 or 80 tune. I also want to replace my injectors. My biggest questions are, Can I have Jesse refurbish the current injectors I have and make them larger or should I try and get new/a lower mile set? Also, will I be able to run slightly bigger injectors without causing my head gaskets to puke? I will do gaskets in the near future I just don't have the money for all of it now.

I need to do something soon because I know its only a matter of time before one component gives out. What direction should I start in. Ultimate goals for later on are bigger sticks and a MTW turbo (shooting for 550hp).

I just don't know what the best course of action is at this point because there are so many things that need to be done.
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Old 01-30-2014, 07:02 PM
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Given your situation, I think i'd take care of the FICM, head gaskets, then injectors, in that order. If you feel your #4 is an issue, then I might just replace it, but honestly I think your head gaskets are a bigger issue than bigger injectors. I'd want a perfectly healthy stock motor before I started looking for more power, and my goals are in the same area as yours (500-550HP)
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Old 01-30-2014, 07:06 PM
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Quote:
Originally Posted by wvrrcarknocker View Post
Given your situation, I think i'd take care of the FICM, head gaskets, then injectors, in that order. If you feel your #4 is an issue, then I might just replace it, but honestly I think your head gaskets are a bigger issue than bigger injectors. I'd want a perfectly healthy stock motor before I started looking for more power, and my goals are in the same area as yours (500-550HP)
I am definitly going to take care of the FICM first because its showing signs of weakness and that could be the biggest cause at the moment. Saving up a little more for headgaskets is probably the smartest idea. I just wanted to get some opinions.
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Old 01-30-2014, 07:29 PM
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Originally Posted by bwmtnbiker View Post
I am definitly going to take care of the FICM first because its showing signs of weakness and that could be the biggest cause at the moment. Saving up a little more for headgaskets is probably the smartest idea. I just wanted to get some opinions.
I would call JSJ Extreme 4X4 ( https://www.facebook.com/pages/JSJ-E...17850018258652 ) for the HG and install unless you are going to do it on your own....
They are a great price...
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Old 01-30-2014, 07:39 PM
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Originally Posted by WHAT HAPPENED View Post
I would call JSJ Extreme 4X4 ( https://www.facebook.com/pages/JSJ-E...17850018258652 ) for the HG and install unless you are going to do it on your own....
They are a great price...
Ill end up doing it myself to save costs on labor. I can definitely handle it. I jsut worked up a rough estimate that I will need $2351 in just parts not including heads.
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