A $3 Arduino and Claude Put a 1994 Jeep to the Test

Muhammad Zulali connected Claude to a 1994 Jeep Cherokee via a $3 Arduino, without an OBD2 port. After data collection, duplication of the computer system, and modification of the fuel settings, the car successfully passed the emissions test in California about a week later.

A Successful Test in One Week and Without Dealer Tools

Muhammad Zulali states that the Jeep passed the emissions test approximately one week after starting work with Claude. According to him, Claude handled most of the diagnostics, while Codex managed nearly all of the memory work. He notes that he did not need a mechanic or a Chrysler dealer tool.

Accessing Data from a 1994 ECU Without OBD2

To connect the AI to the 1994 Jeep Cherokee, Muhammad Zulali used a $3 Arduino as an interface with the embedded system, which did not have an OBD2 port. While driving, Claude was able to collect real-time data, such as temperatures, voltages, and fuel consumption. The vehicle in question is a 1994 model, 32 years old.

Duplication of the System and Correction of Fuel Settings

According to Zulali, Claude replicated the entire computer system of the Jeep to study its operation. This approach allowed for the identification of a California-specific feature in the code that reduced fuel input in certain cases, leading to an increase in nitrogen production. An adjustment was then made by creating and installing a custom code that modified the fuel parameters. Initially, the Jeep repeatedly failed the California emissions test due to excessive nitrogen production.