FK8 misfiring?

FK2 Civic Type R 2015-2017 and FK8 Civic Type R 2017-2018
Post Reply
leechihfei
Posts: 23
Joined: Sun Jan 13, 2019 4:37 am

FK8 misfiring?

Post by leechihfei »

Hi Hondata,

I have been feeling what seems to be mis-firing issues.
My FK8 is a 2018, with G25-660 turbo, PRL downpipe, Cat back exhaust, PRL intercooler, Radiator upgrade, Hondata Fuel upgrade, etc.

After tuning and running around is fine. But I noticed mis-firing occasionally, around 5500rpm especially on a hot day (32 deg C) on track. Changed the plugs, to no avail. Looked at the data log, can't quite make sense of it.

Mis-firing, meaning like it feels like a power cut, unable to generate bhp, burbles from exhaust.

Attached datalog for your kind assistance and analysis.
Attachments
datalog0018.fpdl
(1.17 MiB) Downloaded 8 times
User avatar
Hondata
Site Admin
Posts: 10245
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Re: FK8 misfiring?

Post by Hondata »

Your fuel trims are high, but the problem is that the fuel system is losing fuel pressure over 5000 rpm.
Hondata
leechihfei
Posts: 23
Joined: Sun Jan 13, 2019 4:37 am

Re: FK8 misfiring?

Post by leechihfei »

If I've already have Hondata Fuel upgrade, and I'm losing fuel pressure, what could be the problem?

1. Fuel filter?
2. As everything else is supplied by Hondata Fuel Upgrade System. Did I miss any other possible (culprit) part?
User avatar
Spunkster
Site Admin
Posts: 21377
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: FK8 misfiring?

Post by Spunkster »

Have you checked the fuel system for contamination?

Please see: https://www.civicx.com/forum/threads/us ... ion.65283/
leechihfei
Posts: 23
Joined: Sun Jan 13, 2019 4:37 am

Re: FK8 misfiring?

Post by leechihfei »

No I haven't. I'm not on flex fuel.
Regardless, will revert upon doing so.
Post Reply