Been fighting a rich condition for a year and can't find the cause. Mods: cai, egr delete, cat delete, oil catch can. 270,000 miles . Compression test done twice to verify 200 205 205 200. With the vss (manual trans)exception; all sensors fairly new and all pigtails checked. Ecu replaced. Fuel...

97 eclipse original owner. 270,000 miles. Running incredibly rich. Mods are cai and egr delete . These were done years ago and car was running fine.sensors all new and all harness pigtails checked. The only one that is confusing me is the map sensor 5v reference that jumps around between 4.5 and...