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Description
NGEC0234
SEF453PD
SYSTEM DESCRIPTION
NGEC0234S01
The EGRC-BPT valve monitors exhaust pressure to activate the diaphragm, controlling throttle body vacuum
applied to the EGR valve. In other words, recirculated exhaust gas is controlled in response to positioning of
the EGR valve or to engine operation.
On Board Diagnosis Logic
NGEC0235
If too much EGR flow exists due to an EGRC-BPT valve malfunction, off idle engine roughness will increase.
If the roughness is large, then the vacuum to the EGR valve is interrupted through the EGRC-solenoid valve.
If the engine roughness is reduced at that time, the EGRC-BPT valve malfunction is indicated.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0402 쐌 The EGRC-BPT valve does not operate properly. 쐌 EGRC-BPT valve
쐌 EGR valve
쐌 Loose or disconnected rubber tube
쐌 Blocked rubber tube
쐌 Camshaft position sensor
쐌 Blocked exhaust system
쐌 Orifice
쐌 Mass air flow sensor
쐌 EGRC-solenoid valve
DTC P0402 EGRC-BPT VALVE FUNCTION
KA24DE
Description
EC-339
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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