2000 HONDA CIVIC Workshop Manual

Page 521 of 2189

HONDA CIVIC 2000 6.G Workshop Manual Emission Gontrol System
System Description
The emission control system includes a Three Way Cata-lytic Convener (TWC), Exhaust Gas Recirculation (EGR)
system,. Positive Crankcase Ventilation (pCV) sys

Page 522 of 2189

HONDA CIVIC 2000 6.G Workshop Manual \
lTo420l Th" """n toot indicates Diagnostic Troubte code (DTc) p0420: catatyst sysrem efficiency below threshold.
Description
This system evaluates the catalysts capacity by means of the Ho2s {Prima

Page 523 of 2189

HONDA CIVIC 2000 6.G Workshop Manual Emission Control System
Exhaust Gas Recirculation (EGR) System (D16yS engine)
Doscription
The EGR system is designed to reduce oxides of nitrogen emissions (NOx) by recirculating exhaust gas through t

Page 524 of 2189

HONDA CIVIC 2000 6.G Workshop Manual 4
The scan tool indicates Dlagnostic Trouble cod€ {DTc} Po4ol: lnsufficient flow in the Exhaust Gas Recirculation
(EGR) svstem.
Doscription
Deterioration (clogging, leakage, etc.) in the EGR line or

Page 525 of 2189

HONDA CIVIC 2000 6.G Workshop Manual Emission Control System
Exhaust Gas Recirculation (EGR) System (D16Y5 engine with GWI (contdl
lTl49il T_he scan tool indicates Diagnostic Trouble Code (OTC) P1491: A malfunction in the Exhaust Gas Re

Page 526 of 2189

HONDA CIVIC 2000 6.G Workshop Manual \EGR VALVELIFT SENSOR#16 HOSE
I
(From page 11-256)
EGR VALVE LIFT SENSOR3P CONNECTOR lC14.l)
zF vcczI- . ] IYEL/BLU)ll 2l3l---l-r_ 7 |
v-,, ISG2IGRN/BLK) I ^ II{Vts
ECM CONNECTOR D {16P)
PUMP/GAUGE,0

Page 527 of 2189

HONDA CIVIC 2000 6.G Workshop Manual Emission Gontrol System
Exhaust Gas Recirculation (EGRI System (Dl6Y5 engine with CW) (contdl
EGR VALVE LIFT SENSOR3P CONNECTOR {Cl251
./
EGR L(WHT/BLKI
EGR LIWHT/BLKI
EGR L{WHT/BLKI
sG2
{GRN/BLK}
sG

Page 528 of 2189

HONDA CIVIC 2000 6.G Workshop Manual I
I
Wire side of lemale terminals
PCM CONNECTORS C (31P)*
ECM CONNECTOR O {I5PI
Wire side of temale terminals
t
(From page 11-258)
Check for a 3hort in the wire
{EGRL linel:Check for continuity betwee