S300v3 injector duty cycle drop out

s300 and SManager software questions & answers
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Lmayoral2191
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Joined: Sun Feb 10, 2019 10:39 pm

S300v3 injector duty cycle drop out

Post by Lmayoral2191 »

I’ve had the Hondata s300 installed on my car for over 3years and have had no problems until now, just recently I’ve been having injector duty cycle drop out under WOT. Right at 4K rpms, right around 55% duty cycle, it’ll drop to 12% then pick up to 25% then back down then back up. Car recently started having this issue, injectors have been in the car for about 1yr 550cc grams.

My question is what can cause this issue, for the duty cycle to be dropping out? Fuel pressure? Fuel regulator? Bad injectors? Or electrical issue? Any sort of guidance would be great, thanks!
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Spunkster
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Re: S300v3 injector duty cycle drop out

Post by Spunkster »

You need to post the calibration as well ass a datalog showing the issue.
Lmayoral2191
Posts: 7
Joined: Sun Feb 10, 2019 10:39 pm

Re: S300v3 injector duty cycle drop out

Post by Lmayoral2191 »

Here is the info
Attachments
f23 data log injector drop out.s3d
(158.52 KiB) Downloaded 38 times
f23 injector drop out.skl
(50.78 KiB) Downloaded 36 times
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Spunkster
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Re: S300v3 injector duty cycle drop out

Post by Spunkster »

Are you using the Hondata injector driver and secondary injectors?
Lmayoral2191
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Joined: Sun Feb 10, 2019 10:39 pm

Re: S300v3 injector duty cycle drop out

Post by Lmayoral2191 »

I have just changed the injector CC, this problem just started occurring. If I did not install it in a driver wouldn’t I have this problem from the beginning?
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Spunkster
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Re: S300v3 injector duty cycle drop out

Post by Spunkster »

YOu have secondary injectors tuned on an it will only work with the Hondata Injector Driver.
Lmayoral2191
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Joined: Sun Feb 10, 2019 10:39 pm

Re: S300v3 injector duty cycle drop out

Post by Lmayoral2191 »

How do I correct this issue?
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Spunkster
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Re: S300v3 injector duty cycle drop out

Post by Spunkster »

If you do not have secondary injectors with the injector driver then disable it.
Lmayoral2191
Posts: 7
Joined: Sun Feb 10, 2019 10:39 pm

Re: S300v3 injector duty cycle drop out

Post by Lmayoral2191 »

I must of hit this button by accident or something cause I don’t remember engaging secondary injectors. I’ll take a look at my fuel injector settings and see if I see this second injectors disactivation
Lmayoral2191
Posts: 7
Joined: Sun Feb 10, 2019 10:39 pm

Re: S300v3 injector duty cycle drop out

Post by Lmayoral2191 »

Thanks for the help!!!! That fixed my issue!
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