If hydrogen is available from the exhaust, the TWC/TWNSC will likely deliver ammonia, which reduces the needed volume of urea injection; On the other aspect with the controller, two LEDs are offered for self-diagnostic and service reasons. The electrical connections over the front facet of your controller are Plainly marked https://daltonzhpty.wikifiltraciones.com/2937655/a_secret_weapon_for_save_gasoline