Oggers
Full Access Member
Could I just have a vacuum leek? ive also got a 'hanging' revs problem In between gear changes and if revved, if this is at all related?
Charlie
Charlie
Strange behavior at full boost
- Thread starter Oggers
- Start date
10-1=9
Full Access Member
A vacum leak will always throw a wrench in the works with drivability problems.
Renny017
Full Access Member
In for a solution since mines is displaying the same symptoms. Good thing is I'm several thousands of miles away from mine so it's not being driven.
Sent from my SM-N900T using Tapatalk
Sent from my SM-N900T using Tapatalk
Oggers
Full Access Member
Right I've managed to hack a FireWire cable about so that's plugged into the sct handheld so I can record/log A/f and boost from the aem failsafe gauges as well as all the others you get from the obdII port. Good info here. If it's any help to anyone.
Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - AEM wideband to xcal3 question
Charlie
Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - AEM wideband to xcal3 question
Charlie
boost will do that! 
boost will do that!
Fixing that problem very soon
Oggers
Full Access Member
Lucky we've got ten of those shouldn't affect it too much
Oggers
Full Access Member
Still working on this
Have got rid of the mega rich flat spot. Re set the pcm and did a relearn on tps seems to have solved it.
I'm getting quite a lot of fluctuation in fuel pressure when WOT, goes from 49pis to about 80psi.
Could this be the regulator giving up or could it be caused by a vacuume problem?
Is there a vacuum pipe that runs to the fuel regulator down the back of the engine?
Is the regulator in the fule basket?
Slowly getting there....slowly
Charlie
Have got rid of the mega rich flat spot. Re set the pcm and did a relearn on tps seems to have solved it.
I'm getting quite a lot of fluctuation in fuel pressure when WOT, goes from 49pis to about 80psi.
Could this be the regulator giving up or could it be caused by a vacuume problem?
Is there a vacuum pipe that runs to the fuel regulator down the back of the engine?
Is the regulator in the fule basket?
Slowly getting there....slowly
Charlie
bmxam962
Full Access Member
What kinda fuel system you have?
Oggers
Full Access Member
My oem regulator gave out like 3000 miles after i installed the twin pumps. I don'tthink they can handle the extra psi
. I went with and after market fuel system
Oggers
Full Access Member
Same sort of thing, fluctuating fuel pressue? I'll replace it first If that is the problem.
Is the fuel reg in the fuel basket?
Charlie
bmxam962
Full Access Member
Yes sir it is which sounds like is your issue. You need to do a set up like this. You can call or text me for faster response. But I am also no pro or expert on these trucks but will answer what I can
770 855 9624
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stop being so humble, you are a great resource and I would be inclined to label you as a pro or expert.
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