[montauk]

Originally Posted by rwest

Great write up Montauk.

Could you share more information on how you installed the DBW control on the PMOs?

Thanks

You asked for it!!!

BMW Electronic Throttle Conversion for My Porsche 911
For my electronic throttle setup, I sourced the following components from eBay:
• Throttle Actuator: BMW 2001–2006 E46 M3 (Part #12727831529)
• Acceleration Pedal: BMW 2012–2018 F30/F31/F34 3-Series Gas Pedal (Part #6853175 OEM)
• Connector: VW/Audi/BMW Headlight Level Wiring Connector Pigtail Plug Socket (Part #2-967616-1)
Throttle & Pedal Sensors
For accurate throttle control, I installed a throttle position sensor (TPS) that mounts directly onto the throttle motor shaft. I opted for the OEM Eurosensor version from DigiKey:
• Sensor Part: 5555-EURO-XPD-2832-812-214-911-00-ND
• Manufacturer: VARIOHM / EURO-XPD-2832-812-214-911-00
The throttle position sensor and pedal position sensor each have two sensors, so each requires two sensor wires. For the Haltech ECU, this means running AVI wires:
• Throttle Sensors: AVI5 & AVI6
• Pedal Sensors: AVI8 & AVI9
• Power & Ground: 5V power and signal ground
The throttle motor itself needs two power wires, which connect to HBO wires on the Haltech ECU. In my case, these were HBO1 & HBO2.
Bracket Fabrication
The most time-consuming part of the entire project was fabricating the brackets for the throttle motor and pedal.
• Throttle Motor Bracket: I built this using 18-gauge steel, attaching it to:
o The mount for the stock bellcrank
o The side of the ITBs where the crossbar support attaches
o The breather
To reinforce it, I bent the edges and welded a strengthening rib on the underside for stiffness. I also mounted it at an angle so the throttle motor shaft is parallel to the crossbar.
• Pedal Bracket: I initially built it out of oak to prototype the shape, intending to replace it with metal. However, it turned out so strong that I’ve stuck with the wood bracket for now. I even used my duo-doweler to attach a support to it. Given that pedal boards are plywood anyway, it actually feels like a natural fit.
Cost Breakdown
Here's what I spent on the setup:
• Throttle Motor & Pedal: ~$300
• TPS Sensor: ~$200
• Pedal Connector: ~$20
Since most of the components were used, durability remains to be seen—but so far, so good!