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92 740 Regina stumbles at acceleration

impolvo

Is always busy
Joined
Feb 23, 2006
Location
Chapel Hill NC
92 740 regina stumbles at acceleration from idle
Once revs are up or while driving it has no issues or power loss noted
But starting out from idle the revs go up and down till enough speed is reached

Car has around 500k
Daily driver , automatic
Good cool, wires , plugs , distributor
Iac works temp sensor replaced with known good spare
Suppression relay good

Thinking low fuel pressure ?
Fpr has been replaced so maybe Fuel pump is dying ?

Had idle issues a year ago so I replaced the iac cleaned and adjusted throttle body and tps
 
Changed filter and fixed the issue

So no idea if it is weak pump and partially plugged filter or just plugged filter

Either way fixed
 
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