Report

HotHardware: Claude and Codex help a 1994 Jeep clear California’s smog test

The owner used about $15 in parts to reach the Jeep’s aging engine computer, HotHardware reports.

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1994 Jeep Cherokee owner hacks 32-year-old car with Claude AI to pass California smog tests — using $15 in hardware, enthusiast reverse-engineered the ancient ECU for diagnostics and control

TLDR

According to HotHardware, Muhammad Zulali used Claude, Codex and an Arduino Nano to diagnose and tweak his 1994 Jeep Cherokee after it failed California emissions testing. This wasn’t instant wizardry: early tweaks made emissions worse before the Jeep passed. The report says Zulali has open-sourced the utility code as xj-scanner.

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