System Purpose - Toyota Celica Supra 1986 Service And Repair Manual

l C.2
EMISSION CONTROL SYSTEMS - Syotem Purpote
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SYSTEM PURPOSE
Svotom Abbtovlotlon
....._
Poshive crankcell ventilation
PCV
Roduco blow -by gas IHCI
FI.MI evaporative emission control
EVAP
Rtduc•• ev,aporetiw HC
Dun
pot
DP
RtdUCOI HC an<l CO
Exhaust gas reeirculttlon EGR AtduCII NOx
Three·way cattlyst
TWC
Rt<lucto HC, CO an<l NOx
Elo<:tronic fuol l,;.ction • EFI
~ates
eM engine condltioos fOf reduction of
1XhiUS1 e mis.sionl
Remarks • for Inspec tion end rep1ir of the EFI system, refer to Efl seetkm.