Nitto Mid-Pipe Check Engine Light fix

[ROCKLAND TOYOTA]

Originally Posted by largeorangefont

The foulers do the same thing but mechanically. You are reducing the amount of exhaust gasses the sensor is exposed to, and skewing the reading. Some cars need 2 of them to keep from throwing CELs, one drilled for the sensor, and one undrilled.

ok so you finally got in your head what ive been saying except for the fact that even with the double fouler method that CEL still comes on. NO, who on here is running this setup and has no light.......