Ford Focus Forum, Ford Focus ST Forum - View Single Post - DTC code 1233 after fuel filter change
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Old 09-28-2012, 11:06 AM   #3
DueceCoupe
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Join Date: Mar 2006
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Location: Pennsylvania, PA
What I Drive: 07 Infra Red ST,2002 ZX3.

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No better.
At this point,idle is still rough and a huge bog off the line when going wot.Car also has strange flutter/fluctuating surging around 2000 rpm.
Have so far replaced:
Plugs,wires,egr valve,pcv valve,pcv tube,dpfe sensor,checked for vacuum leaks with carb cleaner,new fuel filter.
Called Ford,no recall on fuel pump and sounds fine.
Only things I can think of is ignition coil (although pulling any of the 4 spark plug boots makes Car run badly) so I believe it to be fully operational,or new injectors???
Any ideas Guys?
This is really starting to irritate Me.
Car also does all of this if I run with or without My tune.
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