Nitro OBD2 is a small device that plugs into your car’s OBD2 port, claiming to improve fuel economy and performance. Marketed as a “chip tuning box,” it promises to optimize your engine’s parameters based on your driving habits. However, does Nitro OBD2 really work, or is it just another automotive scam? This article delves into a detailed analysis of the Nitro OBD2, examining its hardware and CAN bus communication to determine its true functionality.
Inside the Nitro OBD2: Hardware Analysis
Disassembling the Nitro OBD2 reveals a simple circuit board with:
- Standard OBD2 pin connections
- Power circuitry
- A push button
- A microchip
- Three LEDs
Notably absent is a CAN transceiver, a crucial component for communicating with the car’s computer system. While the CAN high (CANH) and CAN low (CANL) pins are connected, the lack of a transceiver raises significant doubts about the device’s ability to modify engine parameters. Further investigation reveals that only the CAN-related pins and those connected to the LEDs are actually utilized by the chip. This minimalist hardware configuration suggests a limited functionality, far from the sophisticated chip tuning advertised. The image below showcases the simplicity of the Nitro OBD2’s internal circuitry.
Does It Communicate? CAN Bus Analysis
To determine if the Nitro OBD2 interacts with the car’s computer, we monitored CAN bus traffic with and without the device plugged in. Using a Raspberry Pi with a PiCAN2 shield, we recorded all CAN messages transmitted on a 2012 diesel Suzuki Swift. The setup allowed us to capture real-time data from the OBD2 port. The results were conclusive:
No new CAN messages were observed when the Nitro OBD2 was connected. This confirms that the device does not actively communicate with the car’s engine control unit (ECU). The lack of communication further supports the conclusion that the Nitro OBD2 is incapable of altering engine performance or fuel consumption. The device merely monitors CAN bus activity to illuminate its LEDs, creating a false impression of functionality.
Chip Deconstruction: No CAN Transceiver Found
Decapping the Nitro OBD2’s microchip provided a final confirmation. Microscopic examination revealed a standard microcontroller architecture with RAM, flash memory, and a CPU core. Crucially, there was no evidence of an integrated CAN transceiver. Comparing the decapped Nitro OBD2 chip to a known CAN transceiver (TJA1050) highlighted the stark difference in complexity and the absence of necessary circuitry for CAN communication within the Nitro OBD2 chip. The image below compares the two chips:
Conclusion: Nitro OBD2 – A False Promise
Our comprehensive analysis demonstrates that the Nitro OBD2 does not function as advertised. It lacks the necessary hardware and communication capabilities to modify engine parameters. Instead of reprogramming your car’s ECU, it simply monitors CAN bus activity and blinks LEDs. Considering the evidence, the Nitro OBD2 appears to be a deceptive product that preys on consumers seeking improved vehicle performance and fuel efficiency. If you’re looking to enhance your car’s capabilities, invest in proven solutions rather than falling for misleading claims.
