Comming back from vacation, the CEL came on. P0088 fuel rail pressure to high............what do ya think??????? Yes filters changed.
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Ugh oh..... Any water when you changed them?

 

there is a flash out there that needs to be done. People were having their hpfp's changed because of the code when they were in fact ok.

You changed your filters. Was the bowl nice and clean? No rust or metal? Then I'd get the flash.

TSB 12-7-7

 

No water, not rust, everything nice and clean.

 

Don't know if the flash is the answer. Mines tuned, Nothing special, just the delete with +75hp.

 

clear the code and drive on then. See if it comes back. If so then maybe get the flash.

 

Already cleared the code. I'm afraid the pump will start to come apart and take out the injectors.

 

<TABLE border=3 cellSpacing=0 cellPadding=3 width="96%"><TBODY><TR><TD bgColor=#0000ff colSpan=2> </TD></TR><TR><TD class=VERTCENT bg*************** width="25%" align=middle>TSB
12-7-7
</TD><TD class=VERTCENT bg*************** width="65%" align=left>

• 6.4L - LACK OF POWER - DIAGNOSTIC TROUBLE CODE (DTC) P0088

</TD></TR><TR><TD bgColor=#0000ff colSpan=2>[************]Publication Date: July 17, 2012[/COLOR]</TD></TR></TBODY></TABLE>
<TABLE border=0><TBODY><TR><TD width=230>FORD:
</TD><TD>2008-2010 F-Super Duty</TD></TR></TBODY></TABLE>


This article supersedes TSB 11-4-22 to update the Service Procedure. ISSUE:

Some F-Super Duty 250-550 vehicles equipped with a 6.4L diesel engine may exhibit a lack of power concern with an intermittent DTC P0088; at full operating temperature during moderate to heavy acceleration. A calibration update is available to resolve this concern.
ACTION:

Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE



Intermittent P0088 diagnostics:

1. Check all continuous memory DTCs. Is DTC P0088 the only code present?
   1. No - this article does not apply, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual to diagnose this concern.
   2. Yes - continue to Step 2
2. Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 79.05 and higher. This new calibration is not included in the VCM 2012.5 DVD. Calibration files may also be obtained at Buy Motorcraft Parts Online | Official Motorcraft Auto Parts Site | FordParts.com.