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Discussion Starter · #1 ·
Apologies for needing to ask this question, but after literally hours online, cannot find the location. All the threads and questions just say it's in the IPDM and give a schmatic, but no dummy arrow saying ITS HERE!

Just dropped a new fuel pump in and not getting power to the pump, so trying to check everything upstream...
 

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Discussion Starter · #5 ·
Thanks again. In case it helps anyone - two things:
1) put a new (Delphi purchased on Amazon) fuel pump in and couldn't get any fuel pressure. first thought it was no power, hence the question to the TT forum, but plugged old fuel pump in and it sent fuel sputtering out. turns out, it was a bad "new" fuel pump. (Odd that Amz sells these for roughly $75 less than Napa or Autozone?)

2)the reason i put the pump in was the oft reported surging under acceleration issue. dug deep and couldn't determine whether it was the IPDM or the fuel pump. odd characteristics of the issue: 1)when sputtering, which sometimes would cause the need to pull over because it couldn't maintain constant speed, if i turned engine off then restarted, it would drive along fine for a while 2)almost always happened with less than half a tank/never over half tank 3)intermittent 4)put new ecm relay in IPDM unit and it didn't change the issue

it was frustrating in all the threads because it seemed like there was rarely a conclusion. SO...

--> in this case it was the FUEL PUMP

Thanks again!
 
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