I've seen lots of reference to WranglerFix.com but all of the reviews on their TJ PCM product page reference the 05-06 problem. Anyone have any luck with 04 replacements from them or anywhere else?
https://wranglerfix.com/product/jeep-wrangler-tj-replacement-pcms/
https://wranglerfix.com/product/jeep-wrangler-tj-replacement-pcms/