IS300 with G35 accelerator pedal installation and Drive-By-Wire configuration

**page under construction**..but it's functional for now, I'm updating it when I have time, I have a mechanic background NOT a web design background.

Click any picture to enlarge

new stud installed
IS300 pedal
G35 pedal
G35 cut arm bottom
new G35 arm bottom
cut off excess

YouTube Video here G35/350z Accelerator Pedal Pinout(multipled Nissan/Infinity's use this sensor, pins are the same, wire colors are different). >br>Wiring described at #:## of this a href video
pins 1 and 3 are sensor ground.
-(NOT chassis ground), connect to the ECU.
pins 4 and 6 are 5v in.
-connect 5v from your ECU.
pin 2 is sub pedal sensor signal 2 (APS2).
pin 5 is main pedal sensor signal 1 (APS1).
connect pins 2 and 5 to your ECU input.

note 1: "ECU" mentioned above refers to your engine management.
note 2: this setup is preferred as it has a cheap replacement sensor that's easily sourced ($20 for OEM).

Advantages/Disadvantages described at #:## and #:## of a href this video
Advantages: Direct bolt in to firewall and cheap sensor that's easy to source and replace.
Disadvantages: Requires bending pedal arm forward 30 degrees and CANNOT be used with OEM IS300 ECU.

Fitment instructions
Step 1: Bend pedal arm forward 30 degrees.
Step 2: Source two 1.5 inch m6x1.0 bolts.
Optional extra steps
Step 3: Install a 2 inch long m6x1.00 stud on the top pedal mount hole on the firewall (makes installation easier).
Step 3.5: Ignore steps 4-8 if you can weld. cut both pedal arms, weld the IS300 lower on the G35 upper. Done!
Step 4: Remove your IS300 pedal pad with a punch tool.
Step 5: Grind off the G35 pedal 90 degree tip
Step 6: Grind off excess around the pedal arm bottom end to allow it to fit into the IS300 pedal pad.
Step 7: Fasten the IS300 pad on the G35 pedal arm with old coat hanger or thick copper wire in a "U" shape
Step 8: Use epoxy to hold everything steady, the wire holds it on the pedal arm, epoxy just ensures it stays still

Click to enlarge

IS250 adapter. Click to download STL files

FR-S/BRZ APPS pinout
Pinout from HPAcademy:
Pins 1 and 4 are 5V from your ECU
Pins 2 and 5 are Sensor ground
Pin 3 DBW - APP2
Pin 6 DBW - APP1

note 1: "ECU" mentioned above refers to your engine management.
note 2: potentially the same pinout as the IS250/IS350 from 06->, needs verification.
note 3: APPS1 and APPS2 can go to either APPS 1 or 2 inputs on the Haltech ECU. It will determine which is which during calibration.

Advantages: The foot pad matches the IS300 brake/clutch style. No other advantages come to mind except how easily the parts are to find used on eBay.
Disadvantage 1: Custom mount needed in order to adapt to your firewall
Disadvantage 2: Sensor/Pedal assembly are one whole unit. Expensive to replace if it fails.

STL (3D print) file on the left.
This is something I found on It's for the IS250 06/07, but the bracket looks similar to the BRZ/FR-S mount points, so it may work or need some slight modification to fit a BRZ/FR-S pedal.

82mm Bosch pinout (click for datasheet)

Bosch DBW pinout
Applies to most Bosch DBW (except 52mm). Verify with part number listing (link below) for other Bosch DBW TBs
Pin 4: Motor+
Pin 1: Motor-
Pin 2: Sensor Ground
Pin 3: 5v Supply
Pin 6: TPS 1 signal
Pin 5: TPS 2 signal

Note 1: Data sheet calls for 6v-16v supply signal, this is referring to the voltage to the DBW motor and not the sensor supply voltage. Verifiable via Haltech's 82mm Bosch info sheet.
Note 2: Using this throttle body requires an adapter (see website below)
Note 3: TPS 1 and TPS 2 on the DBW can go to either TPS 1 or TPS 2 respectively on the Haltech ECU, the Haltech determines which is which during calibration.

Advantages: Bosch reliability, plus all of the drive-by-wire advantages, and it's easy to source a replacement if needed.
Disadvantages: Engine management is required and adapters can be pricey unless you can source a cheap one or know a welder who will weld the flange on your manifold. Website with multiple throttle body flanges, adapters, and wire pigtails.
Click here for the Bosch part number listing for each DBW size with pinout comparisons!