Technical information on the Toyota D-4S system - Page 6 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

SUBADRU · 09-28-2021, 01:12 PM

I hear that the wire harness in the 13_14 brz is a fail point. I infact have cooked my harness from the main plug wires to my injectors. Ive heard that its not uncommon to be replaced with a 2015 2017 harness. Where would i get one of these? And is there any aftermarket support for an upgraded version.
My car has the following installed hks supercharger/hks flash editor/ afe twisted header/invidia full titanium catback/ aem 340lph fuel pump/
Parts not installed but owned ecutek programmer will be tuned oct 12 if i fix my harness and e85 with ID 1040
Dual catch cans and a Grimm speed boost controller waiting also on my ACT extreme clutch n flywheel

NoHaveMSG · 09-28-2021, 01:35 PM

Quote:

Originally Posted by SUBADRU

I hear that the wire harness in the 13_14 brz is a fail point. I infact have cooked my harness from the main plug wires to my injectors. Ive heard that its not uncommon to be replaced with a 2015 2017 harness. Where would i get one of these? And is there any aftermarket support for an upgraded version.
My car has the following installed hks supercharger/hks flash editor/ afe twisted header/invidia full titanium catback/ aem 340lph fuel pump/
Parts not installed but owned ecutek programmer will be tuned oct 12 if i fix my harness and e85 with ID 1040
Dual catch cans and a Grimm speed boost controller waiting also on my ACT extreme clutch n flywheel

Have never heard that before. The main reason people upgrade to the 15' wire harness is to use the updated coil packs.

zeal86 · 01-13-2025, 09:43 PM

Direct Injectors Question

I am trying to acquire definitive information about reinstalling direct injectors (Ds) out of the original order into the FA20. Does it matter? I've read varying opinions on this...it matters and it doesn't matter. Some of the opinions were not necessarily about the FA20 but in general. Some stating different positions have varying spray patterns. Some things I read stated disconnecting the battery/pulling fuse so that the ECU can adjust to new injectors or in my case, possibly the wong positions.

If it does matter...I have my (DIs) ready to reinstall but I've lost track of which ones I pulled from which cylinders and/or position on DI fuel rails. I think I know which two came from the passenger side vs the driver side fuel rails but not a 100% on that.

All injectors have the same part numbers minus the serial numbers. They are the original OEM ones with the stratified number 2 printed on them. I just cleaned them and changed all the seals.

Any help will be appreciated!

www.instagram.com/zeal.eightsix

09-28-2021, 01:12 PM	#71
SUBADRU Building à DRIFTER Join Date: Sep 2021 Drives: 2013 Subaru BRZ limited w/HKS Super Location: Pittsburgh Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I have a 2013 BRZ fried my wiring harness under the hood I hear that the wire harness in the 13_14 brz is a fail point. I infact have cooked my harness from the main plug wires to my injectors. Ive heard that its not uncommon to be replaced with a 2015 2017 harness. Where would i get one of these? And is there any aftermarket support for an upgraded version. My car has the following installed hks supercharger/hks flash editor/ afe twisted header/invidia full titanium catback/ aem 340lph fuel pump/ Parts not installed but owned ecutek programmer will be tuned oct 12 if i fix my harness and e85 with ID 1040 Dual catch cans and a Grimm speed boost controller waiting also on my ACT extreme clutch n flywheel

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01-13-2025, 09:43 PM	#73
zeal86 Senior Member Join Date: Jul 2014 Drives: Posts: 2,000 Thanks: 1,156 Thanked 1,895 Times in 908 Posts Mentioned: 23 Post(s) Tagged: 0 Thread(s)	Direct Injectors Question I am trying to acquire definitive information about reinstalling direct injectors (Ds) out of the original order into the FA20. Does it matter? I've read varying opinions on this...it matters and it doesn't matter. Some of the opinions were not necessarily about the FA20 but in general. Some stating different positions have varying spray patterns. Some things I read stated disconnecting the battery/pulling fuse so that the ECU can adjust to new injectors or in my case, possibly the wong positions. If it does matter...I have my (DIs) ready to reinstall but I've lost track of which ones I pulled from which cylinders and/or position on DI fuel rails. I think I know which two came from the passenger side vs the driver side fuel rails but not a 100% on that. All injectors have the same part numbers minus the serial numbers. They are the original OEM ones with the stratified number 2 printed on them. I just cleaned them and changed all the seals. Any help will be appreciated! www.instagram.com/zeal.eightsix

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