Issue with Direct Fuel Assy Injector BRZ / FT86 2013 P1261/P1264

[akumahasansaid]

i have 2 car


1. BRZ 2013 ( All Stock Part , No Upgrade )
2. FT 86 2012 ( All Stock Part , No Upgrade )


At November 2021 , my BRZ have Problem P1261
P1261 code possible causes

• Faulty Fuel Injector 1
• Fuel Injector 1 harness is open or shorted
• Fuel Injector 1 circuit poor electrical connection
• Faulty Fuel Injector Interface Module

I try to switch injector between 1 and 3
but still got P1261
Resume is , Not Broken Injector

Desember 2021 :



I try to switch ECU from FT86 , Error Still P1261
Resume is , Not ECU FAILED


I Buy 1 set Engine Full Harness
still got P1261
Resume is : Not Cable Problem


I Buy Electronic Control Module ( one inside pessenger seat )
still got P1261
Also I try to Install BRZ ECM to FT86 , FT86 Normal
Resume is , Not ECM FAILED


At January 2022:


I take Of the machine from car , and see any problem , but can't get problem , all normal
Put in the machine back


ERROR go to P1264


I take off 4 injector , part Number of injector is SU003-04462 same as installed in both my car

I buy 1pc from toyota dealer and put in on Di Injector 4
The Error Change to P1261


I Buy 1pc Again From Toyota Put it in Port 1
The Error Goes to P1262


I Buy 1pc MORE From Toyota Put in on Port 2
The Error Go BAck to P1264


February 2022 :


I try to switch 1 set ( 4pcs ) injector from FT 86 to BRZ

The BRZ Normal
FT 86 Problem P1264 , I try combination of ALL Injector that i have
( 3pcs new injector + 4pcs used injector )

the problem exist...........


I dont know anymore , what i have to do .....


Anyone can help my problem please.........

[blsfrs]

The DI controller is mounted on the right side of the engine. The bottom bolt is the ground. Are all the engine grounds connected?

[akumahasansaid]

SOLVED ,.... i try to mix , 3pcs new injector + 4pcs used injector



4pcs of injector , Must be same Voltage


2 of them is diffrent ( broken )