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2007 f150 4.6 runs rough

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Old Mar 3, 2023 | 06:34 PM
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2007 f150 4.6 runs rough

I dropped the tank put it back in hooked it all back up drove maybe 10 miles and began running rough and lost power. I replaced the fuel filter thinking stiring the tank up the filter was bad. That didn't solve it. I put all new injectors in along with another fuel rail because the input side fitting on the rail was leaking. I now have a code of the o2 sensors running rich. Any ideas as to what I should try next or where to begin would be greatly appreciated.
 
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Old Mar 3, 2023 | 10:10 PM
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What are the exact codes?
 
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Old Mar 4, 2023 | 10:46 AM
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The codes are p0193, p2198, p2196, p0113
 
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Old Mar 4, 2023 | 03:20 PM
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Looking at those codes, one is fuel pressure too high and two of the others can be caused by fuel pressure too high.
 
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Old Mar 4, 2023 | 04:35 PM
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Could something of happened to the fuel pump when I removed the tank from the truck? All I did initially is drop the tank and put it back in.
 
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Old Mar 4, 2023 | 06:27 PM
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I have a feeling the return fuel to tank is pinched or not connected correctly causing the high fuel pressure.

Just a WAG.
 
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Old Mar 4, 2023 | 06:58 PM
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I don't think the 2007 has a return system, it uses a FPDM.
 
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Old Mar 4, 2023 | 10:06 PM
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glc is right... I wasn't looking at the year.
 
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Old Mar 6, 2023 | 11:07 PM
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A stuck open purge valve could cause this. You can check it by removing it and blowing into it. If it"s defective if you can blow through it either way.

May be other things, but I'd check that first.
 
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Old Mar 11, 2023 | 10:28 AM
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So, I took the tank back down checked the lines and the electrical everything is good. I pulled out the pump that looked good. I did find a wire on the mass air flow sensor that was corroded and broke, I fixed that. It still is running rough. When the truck is cold it runs perfect, as soon as it starts to warm up it starts sputtering again. Now there is no codes coming up on the scanner. I also checked the pcv valve and that is good. I did replace it about 6 months ago.
 

Last edited by Oldantique; Mar 11, 2023 at 10:33 AM.
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Old Mar 11, 2023 | 10:56 AM
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I would run the truck until it sends a code.
 
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Old Mar 24, 2023 | 05:39 PM
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I now have a p0460, and a p0198 code. Installed a new mass air flow sensor. Still runs rough. I'm lost. This the the love data of the o2 sensors at idle

 

Last edited by Oldantique; Mar 24, 2023 at 06:00 PM.
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Old Mar 24, 2023 | 05:47 PM
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From: Joplin MO
https://www.obd-codes.com/p0460

https://www.obd-codes.com/p0198
 
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