NefMoto > Technical > Tuning > Fueling after FPR change
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Author Topic: Fueling after FPR change  (Read 2664 times)
Dejw0089
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« on: May 31, 2020, 11:12:19 AM »
Hi.

Can anyone help me what can be wrong with fueling after change fpr from 3 to 4 bar?

Lambda didn't follow requested
can be affected with knock lambda regulation? I log on 95 RON but normally drive on 98. I know I have a knock but on 98 won't.
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nyet
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« Reply #1 on: May 31, 2020, 11:29:16 AM »
God forbid you check the s4wiki

https://s4wiki.com/wiki/Fuel_injectors
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Dejw0089
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« Reply #2 on: May 31, 2020, 04:03:03 PM »
Quote from: nyet on May 31, 2020, 11:29:16 AM
God forbid you check the s4wiki

https://s4wiki.com/wiki/Fuel_injectors
Why forbid?
I modified krkte and have part LTFT after few days dive on 0,8% so i think thats good or i'm in mistake?
My bosch numer for injector is 0-280-156-063
« Last Edit: May 31, 2020, 04:06:24 PM by Dejw0089 » Logged
K92
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« Reply #3 on: June 06, 2020, 09:54:28 AM »
Quote from: Dejw0089 on May 31, 2020, 04:03:03 PM
Why forbid?
I modified krkte and have part LTFT after few days dive on 0,8% so i think thats good or i'm in mistake?
My bosch numer for injector is 0-280-156-063
You need to change TVUB also
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Dejw0089
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« Reply #4 on: June 08, 2020, 06:55:46 AM »
Quote from: K92 on June 06, 2020, 09:54:28 AM
You need to change TVUB also
No tvub didnt need to be changed.Injectors are stock. All trims are perfect
Idle -0.2 part -0.8 only problem was with wot fueling but i solve it because i think its fpr fault or stock fuel pump cant hold 4 bar on higher flow when engine is in wot and I do some test but i think i have found problem.
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