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Power Strokes
6.4 Tech
P0088 Hpfp Questions
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[QUOTE="Petro, post: 329462, member: 751"] Alright as Ive mentioned before Im getting the P0088 code in my 6.4. Now I was told today that if you get a P0088 code your pump is FOR SURE on its way out. Is this the truth or have some of you guys replaced fuel rail pressure sensors or any other sensors and fixed the issue? I WAS leaning toward it being a sensor, because it seems to come and go with the changing of tunes. When it first started this, I was running my IDP tow tune, it threw the code maybe 4 times. I then switched to my street tune for over a month without one code. I Then ran Ex Race for another 2 weeks without one issue. A week ago I Began running EX Mild and within 2 days it threw the code again. I have since switched back to Street and have been on that for the last 3 or 4 days. Yesterday while towing close to 15000 pounds it threw the code twice which has maybe changed my opinion on the sensor theory. Now sorry for the crazy long post but does this point to a bad HPFP, Was it just a coincidence that it quit after i changed tunes? Which sensors do I check and where are they located in this Cluster F*ck Ford calls an Engine Bay. Im planning on pulling the cab soon for other reason so Id like to try and figure it out before then so I know if i need to buy a HPFP while im at it. Ive also changed fuel filters and have found NO metal shavings of any Kind (Thank God). Thanks in Advance, just wanting some input from guys that have gone through this already. [/QUOTE]
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