Technical Service Publications document on P0420 - Catalyst Syst…

Tech caISsr sPuhl m ns PCED He Em! Seavch Naywate yew HED wlxlal @ ~wl poazo , catalyst system affacaehcy Below Threshold (Bank 1) Ihaacates Bank 1 catalyst system effacaehcy as helcw the acceptahle thfeshcla Use cf leaaea fuel nauacea H025 halfuhctachanc am Hash fuel cfessufe nauacea exhaust uahafcla nauacea catalytac cchveftef oal cchtamnatach cylahaef ausfafanc ncwhstfeau H025 wafes amafccefly ccmectea nauacea exhaust system cape nauacea uufflef /taalcace assembly Retarded spark tauung ccuwafe H025 upstfeau f acwhstfeau swatch fate, Uhaef normal clcsea lccp fuel cchaatachs, hach effacaehcy catalysts have cxycen stcface whach makes the swatchanc ffequehcy cf the acwhstfeau H025 quate slcw ccuwafea tc the upstfeau Hozs, As catalyst effacaehcy aetefacfates, ats ahalaty tc stcfe cxycen aeclahes and the acwhstfeau H025 sacnal hecahs tc swatch ucfe facaaly apcfcachanc the swatchanc fate cf the upstfeau Hozs, Once heycha ah acceptahle hunt the am: as set. J Enu/cxaceum W24nn2 cw Aezaeznm nu [I3