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why my injectors are over duty cycle
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Topic: why my injectors are over duty cycle (Read 3045 times)
tao13
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why my injectors are over duty cycle
« on: November 05, 2018, 02:35:54 AM »
Hi all.
Anybody can give me a reason for why my injectors are over duty cycle at the red line.
I have 386cc at 3bars with 3 bar standard fpr. All table in my ecu file was modified for these injectors.
LTFT and STFT works greate.
I saw my lambda follow LAMFA.
Can be my fuel pump or my injectors?
I attached my log.
Many thanks in advance.
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adam-
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Re: why my injectors are over duty cycle
« Reply #1 on: November 05, 2018, 04:44:59 AM »
Because you're running out of fuel? Log fuel pressure. What boost?
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Blazius
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Re: why my injectors are over duty cycle
« Reply #2 on: November 05, 2018, 04:55:26 AM »
The injectors are not enough if you are maxing them out, why not run 4 bar?
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tao13
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Re: why my injectors are over duty cycle
« Reply #3 on: November 05, 2018, 05:55:19 AM »
forthe moment i tried standard injectors from bam engine because i had all map from original ecu file and was calibrated ok.
the strange thing is effinjtime is 16-18% but duty is 100% when the boost is 1.0-1.1bar
about fuel preasure i think my ecu doesn't know this value to log it.
will try with a new fpr 4bar
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fknbrkn
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mk4 1.8T AUM
Re: why my injectors are over duty cycle
« Reply #4 on: November 05, 2018, 08:05:53 AM »
You should measure fuel pressure with gauge @wot
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tao13
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Posts: 471
Re: why my injectors are over duty cycle
« Reply #5 on: November 05, 2018, 10:30:15 AM »
will try , i have an fuel preasure regulator with gauge but i must modify my fuel rail
thanks for your answers
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