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Old 07-14-2015, 08:56 AM   #1
Gmcbroken
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How to go about this

I have a 5.3 4l60e out of a 04-05 yukon xl. Is has a computer controlled regulate.how do I bypass this. My harness will get reworked to the basics. I just Wana run a inline pump.any help would be greatly appreciated.
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Old 07-14-2015, 09:25 AM   #2
ls1nova71
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Re: How to go about this

Thats most likley a flex fuel sensor. You can just eliminate it, but just dont try running e85 in it when you're done.
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Old 07-14-2015, 09:45 AM   #3
Gmcbroken
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I know it's gonna sound stupid but eliminate mears wire and all wherever it hooks up at. Will the computer get a error code I should be worried about. Can I have this eliminated in the harness rework.thanks again guys
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Old 07-14-2015, 11:26 AM   #4
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Re: How to go about this

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Old 07-14-2015, 11:27 AM   #5
Gmcbroken
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Re: How to go about this

It is a flex fuel sensor that's all I know
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Old 07-14-2015, 12:16 PM   #6
indymachinist
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Re: How to go about this

that is a flex fuel sensor and a fuel filter. there is no regulator there. pretty sure on the truck systems the regulator is right up on the rail on the intake manifold.

you dont need that if you dont want it. just leave it out and tell whoever is tuning your computer to turn it off.
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Old 07-14-2015, 01:02 PM   #7
bpatrol
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Re: How to go about this

walbro 255 fuel pump and go
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Old 07-15-2015, 07:39 AM   #8
aknovaman
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Re: How to go about this

Hope you have a competent tuner that knows to zero out the flex fuel modifier tables as well as the codes for it. Also the injector tables are different than a non flex vehicle. He needs to use a flex file and just kill the codes as well as zero the tables. Use a non flex file and your fuel trims and other settings wil mess with drive ability along other things.

The easiest thing would be to just leave the sensor in there as all fuel has some alcohol in it and let the sensor do what it's designed to do.
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Old 07-17-2015, 12:36 AM   #9
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Re: How to go about this

04 and up is returnless and regulator is in the tank. Aknova is right, if you don't have a good tuner or know what your are doing, just leave it in the system. It won't hurt anything and save you a headache on the tune side.
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