Search found 6 matches

by FLO_FK8
Thu Mar 06, 2025 5:19 pm
Forum: Civic Type R 2015+
Topic: HPFP Command issue on start up
Replies: 19
Views: 21672

Re: HPFP Command issue on start up


One of my e-tuned customers had similar problem with his FL5 and Hondata Fuel System when the cold weather came in few months ago.

Cold Fuel Start edits fixed his issue.


Hi, I was wondering if you could elaborate on the "Cold Fuel Start edit fixed his issue". I have the Hondata Fuel System ...
by FLO_FK8
Thu Mar 06, 2025 5:09 pm
Forum: Civic Type R 2015+
Topic: Hondata Fuel System Plus - please help with HPFP PID Tuning
Replies: 20
Views: 24679

Re: Hondata Fuel System Plus - please help with HPFP PID Tuning


This should be your starting point for cranking fuel adjustment for ethanol. The axis are ethanol content and number of engine injections and the value is percentage adjustment. You can adjust further. There also is a table by ECT which helps too.

ethanol-fuel.png


Hi, it's been a while since I ...
by FLO_FK8
Tue Aug 20, 2024 5:43 am
Forum: Civic Type R 2015+
Topic: Hondata Fuel System Plus - please help with HPFP PID Tuning
Replies: 20
Views: 24679

Re: Hondata Fuel System Plus - please help with HPFP PID Tuning

Hi All,

It's been a while since I've got my tuned and what I'm noticing is that my car has a hard time on cold start when I'm on full E85 on the HFS+. If I'm on strictly 91 or 93 no cold start issues. I wonder if that's normal or if anyone has similar experience? I did change my spark plugs when I ...
by FLO_FK8
Tue Jun 18, 2024 11:06 am
Forum: Civic Type R 2015+
Topic: Hondata Fuel System Plus - please help with HPFP PID Tuning
Replies: 20
Views: 24679

Re: Hondata Fuel System Plus - please help with HPFP PID Tuning

Thank you for the update regarding the injector size.

I've also been getting cold start issues after installing the HFS+ or essentially rough starting. I've had a few misfire codes and then recently, I got the P050B code for the Cold Start Ignition Timing Control System Performance. However, once ...
by FLO_FK8
Mon Jun 03, 2024 3:25 pm
Forum: Civic Type R 2015+
Topic: Hondata Fuel System Plus - please help with HPFP PID Tuning
Replies: 20
Views: 24679

Re: Hondata Fuel System Plus - please help with HPFP PID Tuning

Thank you for the information Jeffx. This is very helpful. I have my tuned scheduled for June 10th and will keep you posted on how it goes and if my Tuner runs into similar issues or finds a way to smooth out the system. I'm planning to go in on 93 and then add the E85 once my tuner runs some ...
by FLO_FK8
Tue May 28, 2024 8:46 am
Forum: Civic Type R 2015+
Topic: Hondata Fuel System Plus - please help with HPFP PID Tuning
Replies: 20
Views: 24679

Re: Hondata Fuel System Plus - please help with HPFP PID Tuning

How is the car running since you last posted the magic number? I just recently installed the Hondata Fuel System Plus and I am waiting to get scheduled for a tune. I selected the recommended tune from Hondata and drove my car around the block for a bit to clear the codes, but I am a little cautious ...