Idle fuel pressure tables for DE5 and Fl5

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jpierro79
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Joined: Fri Mar 27, 2020 1:57 pm

Idle fuel pressure tables for DE5 and Fl5

Post by jpierro79 »

Hell this is John from www.fk8td.com
Can we please have idle fuel pressure tables for DE5 integra type s and FL5 type r
Larger injectors need lower idle fuel pressure to run better.
2000cc running at 1000 psi brings the injector pulse width down to .5ms on 50 percent ethanol and even lower on gas. That creates poor idle behavior due to most injectors behaving poorly below
.8-1ms pulse width. It causes surges and fuel short term trim fluctuations.
I should mention this is not an issue in the Fk8 Type R due to the fact we have idle fuel pressure tables.
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Hondata
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Re: Idle fuel pressure tables for DE5 and Fl5

Post by Hondata »

FL5/DE5 do not have the same fuel pressure tables as the FK8, so there does not seem to be a specific table for idle.

What fuel pressure do you currently see at idle?
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jpierro79
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Re: Idle fuel pressure tables for DE5 and Fl5

Post by jpierro79 »

Somewhere between 75-80 bar at idle the regular tables kick in immediately as soon as you touch the throttle. I need to be able to set to at least as low as 25 bar for proper idle operation using 2000cc
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Hondata
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Re: Idle fuel pressure tables for DE5 and Fl5

Post by Hondata »

There's a table which I believe is the fuel pressure for idle. I'll add it in since we are about to do a software release, but we will not have a chance to test it.
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jpierro79
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Joined: Fri Mar 27, 2020 1:57 pm

Re: Idle fuel pressure tables for DE5 and Fl5

Post by jpierro79 »

Ty sir much appreciated.
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