Hesitation in boost and high rpm

[ZSHO]

Here's a post i made a while back with some Diagrams with step by step instructions on the sender, hope it helps any. Z
http://www.ecoboostperformanceforum.com/index.php/topic,6401.0.html

[FoMoCoSHO]

Cool I think the HPFP is the culprit so I think its worth the gamble to swap that out first. Any input would be appreciated!

Can you post or email me your log?

[FoMoCoSHO]

Do you normally fuel up at the same place?

[polskifacet]

only a couple select stations

[polskifacet]

I think since the LPFP seems to keep up with desired pressure, I will focus on the HPFP since that where it seems to be off. I can get one from the dealer for $190.

[polskifacet]

Logs
http://polskifacet.dynu.com:55698/uploader/uploads/Pictures/Logs

[polskifacet]

Is it me or is that a date. If the year is actually 14 there is no way its the original pump.

[StealBlueSho]

Isn't this the second motor?


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[polskifacet]

Yes

[derfdog15]

Did you put in an assembled longblock? If so, I would bet the HPFP is an accessory that was included, especially if it was a used motor.

[polskifacet]

Did you put in an assembled longblock? If so, I would bet the HPFP is an accessory that was included, especially if it was a used motor.

Dealer replaced long block under warranty. my car was manufactured in 2012. has to be a new one.

[ZSHO]

The long block engine assembly which is Part # DG1Z6006A can be had for nearly 6.500.00 with all parts needed.  Part Description: 3.5L Dual Over Head Cam T/C V6 Gas ; SHO Package 1; Gaskets And Additional Parts Must Be Purchased Separately, Includes Oil Pan, Valve Covers, Front Cover & Water Pump.  Z      http://www.fordparts.com/Commerce/PartDetail.aspx?n=JfBYT2Kj2LUpv3vNzQFYwQ%3d%3d&id=390313021&m=44&search=true&year=2013&make=Ford&model=Taurus   
I would love to see some pics of that new engine if possible.  Z

               

[polskifacet]

if you look at log 5 that i just uploaded which is back to stock (87 octane tune), the frp is solid as a rock wtf is going on!  its over 2300 psi pretty much the whole time.

[derfdog15]

Haven't looked at the logs, BUT, compare MAP, Load, Load Absolute, and Spark as well.

On an 87 tune, the MAP commanded will be lower, by a decent margin generally, and with less boost, etc. you will not tax the fuel system nearly as much.

[polskifacet]

sure but this proves the HPFP is fine since it keeps constant high pressure. If anything it could be the tank pump/pumps but then I think you would see that drop pressure if there was an issue there. Fuel line would have to be pinched for the lpfps to have pressure but not enough flow but that's fairly unlikely since AFR is good.