help fuel cut!!!
#1
Scooby Regular
Thread Starter
Join Date: Jun 2007
Location: Glasgow
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
help fuel cut!!!
I have a 1995 WRX its running a chipped ecu (1.4 Barr of boost) a sx fuel pressure regulator set to just over 3 Barr a P1 or sti6 top mount and HKS evc 4 boost controller set to 1.4 Barr. But i keep hitting fuel cut at 5000rpm, anyone any ideas how to sort my problem???
Thanks
Brian
Thanks
Brian
#5
The easiest way would be to lower the boost via the boost controller as 1.4 bar is too much. The controller is automatically lowering itself to 0.6 bar as a safety feature as it's boosting too high. Try setting the boost to something like 1.0 bar as a maximum and keep increasing over time in small increments until you reach a level that the car is ok with.
#6
Scooby Regular
Join Date: Apr 2005
Location: East Sussex/Kent Border
Posts: 841
Likes: 0
Received 0 Likes
on
0 Posts
The easiest way would be to lower the boost via the boost controller as 1.4 bar is too much. The controller is automatically lowering itself to 0.6 bar as a safety feature as it's boosting too high. Try setting the boost to something like 1.0 bar as a maximum and keep increasing over time in small increments until you reach a level that the car is ok with.
#7
Scooby Regular
Join Date: Apr 2005
Location: East Sussex/Kent Border
Posts: 841
Likes: 0
Received 0 Likes
on
0 Posts
I should have added that it is worth getting it checked out to make sure it fuelling OK, etc - I stuck mine on the rollers at PE and they did it for me - boost guage also gives you a little more confidence
Trending Topics
#8
What about gain settings? Where should it be set etc. I get boost fluctuation since I fitted a boost controller and I have even set it up for standard boost and still the same problem. The car is not mapped but surely to run standard boost through a boost controller it wouldn't need mapping. It boosted to 1.0bar before i fitted the controller with no problems, strange hey!
#9
The controller has to be set up first so that it doesn't "spike" (reach momentary high boost levels). I.e. if you want 1.0 bar make sure that the car never reads as high as that when you take it out for a drive with Wide Open Throttle in each gear.
Initially set the Gain as low as possible then keep increasing gradually over time making sure that maximum boost isn't exceeded.
If you're having difficulty with it still though, it's always an option to have it adjusted on a rolling road and they'll set it just right.
Initially set the Gain as low as possible then keep increasing gradually over time making sure that maximum boost isn't exceeded.
If you're having difficulty with it still though, it's always an option to have it adjusted on a rolling road and they'll set it just right.
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM