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S300v3 injector duty cycle drop out

Posted: Sun Feb 10, 2019 10:48 pm
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!

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 10:17 am
by Spunkster
You need to post the calibration as well ass a datalog showing the issue.

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 11:19 am
by Lmayoral2191
Here is the info

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 12:21 pm
by Spunkster
Are you using the Hondata injector driver and secondary injectors?

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 3:56 pm
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?

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 4:20 pm
by Spunkster
YOu have secondary injectors tuned on an it will only work with the Hondata Injector Driver.

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 4:45 pm
by Lmayoral2191
How do I correct this issue?

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 5:46 pm
by Spunkster
If you do not have secondary injectors with the injector driver then disable it.

Re: S300v3 injector duty cycle drop out

Posted: Mon Feb 11, 2019 6:33 pm
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

Re: S300v3 injector duty cycle drop out

Posted: Tue Feb 12, 2019 11:59 am
by Lmayoral2191
Thanks for the help!!!! That fixed my issue!