Meangreen14
Expert Class
Posts: 343
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posted December 06, 2010 02:54 PM
FI light comes on under boost
whats up guys, any one have problems with FI sign sowing on on ur dash under boost, it comes on high RPM around 8500rpm in sixth air/fuel is reading ok...
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PCV, quick shifter, stock gearing,
fly's out, custom garrett gt28 stage1 turbo, JE pistons, 625cc inj, MTC lock up clutch,1:1 fuel pressure regulator...
  
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted December 06, 2010 03:10 PM
You have the one way valve installed and working correctly in front of the map sensor?
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01smokes
Needs a job
Posts: 2243
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posted December 06, 2010 03:48 PM
injectors are maxed out up the fuel pressure
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Meangreen14
Expert Class
Posts: 343
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posted December 06, 2010 04:13 PM
Ok cool I'll check valve and up the fuel pressure a Lil more
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PCV, quick shifter, stock gearing,
fly's out, custom garrett gt28 stage1 turbo, JE pistons, 625cc inj, MTC lock up clutch,1:1 fuel pressure regulator...
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01smokes
Needs a job
Posts: 2243
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posted December 06, 2010 05:54 PM
quote:
Ok cool I'll check valve and up the fuel pressure a Lil more
how much boost are you on are you on stock injectors??? and what is the static fuel pressure at?
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Meangreen14
Expert Class
Posts: 343
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posted December 06, 2010 06:49 PM
5lb boost creeps to 6.5-7, yes still on stock injectors and pressure is at 65
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PCV, quick shifter, stock gearing,
fly's out, custom garrett gt28 stage1 turbo, JE pistons, 625cc inj, MTC lock up clutch,1:1 fuel pressure regulator...
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01smokes
Needs a job
Posts: 2243
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posted December 06, 2010 09:22 PM
quote:
5lb boost creeps to 6.5-7, yes still on stock injectors and pressure is at 65
what year is your bike, you need to run a FMU for stock injectors...
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Email, artvgl@yahoo.com
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NINJA12
Needs a job
Posts: 3310
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posted December 06, 2010 09:48 PM
it's probably the check valve.The map sensor throws a light with very little boost pressure.
It should never see boost.
I like to run the check off a T with it in the end vented to air
You would be surprised at how much the map sensor controls the mapping.
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01smokes
Needs a job
Posts: 2243
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posted December 06, 2010 09:50 PM
quote:
it's probably the check valve.The map sensor throws a light with very little boost pressure.
It should never see boost.
I like to run the check off a T with it in the end vented to air
You would be surprised at how much the map sensor controls the mapping.
ive never had a check valve on my bike ever and it always seamed to run fine. ill put one in this time around
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PayPal, vigilart22@yahoo.com
Email, artvgl@yahoo.com
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NINJA12
Needs a job
Posts: 3310
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posted December 06, 2010 10:42 PM
have you always made boost?
did you just seal a leak? My bike trip the light with a 4 lb spring in it.
I'm no pro this is my first turbo and i'm learning as i go.
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01smokes
Needs a job
Posts: 2243
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posted December 06, 2010 10:49 PM
my FI light came on once on 12psi i just gave it a few more psi of fuel and that took care of it
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PayPal, vigilart22@yahoo.com
Email, artvgl@yahoo.com
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Meangreen14
Expert Class
Posts: 343
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posted December 07, 2010 08:51 AM
Bike is a 2009
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PCV, quick shifter, stock gearing,
fly's out, custom garrett gt28 stage1 turbo, JE pistons, 625cc inj, MTC lock up clutch,1:1 fuel pressure regulator...
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted December 07, 2010 12:17 PM
quote:
my FI light came on once on 12psi i just gave it a few more psi of fuel and that took care of it
Could it be because you have an external map sensor hooked up to your multi function hub?
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NINJA12
Needs a job
Posts: 3310
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posted December 07, 2010 01:48 PM
quote:
my FI light came on once on 12psi i just gave it a few more psi of fuel and that took care of it
i don't understand why that would work.
We dont have a closed loop system. you bike would not know it was lean to throw a code.
And the duty cycle on the injectors would be the same with more fuel pressure. just richer.
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zxbob
Pro
Posts: 1692
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posted December 08, 2010 04:58 AM
quote:
it's probably the check valve.The map sensor throws a light with very little boost pressure.
It should never see boost.
I like to run the check off a T with it in the end vented to air
You would be surprised at how much the map sensor controls the mapping.
Winner !
Bob
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Good parts aint cheap and cheap parts aint good !
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