IMPORTANT - The information on this page is ONLY applicable to the 3B engine. It is NOT transferable to the ABY engine. 

The image below depicts the pin locations as if viewing the connector on the ECU.

The image below depicts the 3B ECU pinout when viewing the cable assembly.

The following table defines the functionality of each of the 55 pins on the 3B Motronic ECU. 

Daemon Goldsmith - Order Flow Trading For Fun And Profit.pdf Apr 2026

for _ in range(num_trades): # Simulate random order flow: +1 (buy market order), -1 (sell market order), 0 (none) flow = np.random.choice([-1, 0, 1], p=[0.3, 0.4, 0.3])

| Component | Description | |-----------|-------------| | | Buying at bid, selling at ask. | | Rebates | Some exchanges pay fees for adding liquidity (maker rebates). | | Adverse selection | Risk of being picked off by informed traders. | | Inventory management | Offsetting unwanted exposure. | daemon goldsmith - order flow trading for fun and profit.pdf

Minus exchange fees (e.g., 0.1% taker fee on the exiting trade) → net ~$0.08. Below is a simplified backtest of a Daemon Goldsmith trading against random order flow. for _ in range(num_trades): # Simulate random order

pnl = []

Gross profit = $100.07 – $99.98 = $0.09 per unit. | | Inventory management | Offsetting unwanted exposure

# Mark-to-market PnL mtm = cash + inventory * mid_price pnl.append(mtm) final_pnl = pnl[-1] - 10000 print(f"Final PnL: $final_pnl:.2f") print(f"Total trades executed: num_trades")

Typical output (varies by random seed):