E.C.C. Trouble Diagnoses (Models with catalyzer and E.G.R.) — Diagnostic Procedure 10 (Cont'd)
EF & EC-107flowchartApplicable to GA13DS, GA14DS & GA16DS engines (models with catalyzer and E.G.R.).
Diagnostic Procedure 10 (Cont'd)
NOTE
Applicable to models GA13DS, GA14DS & GA16DS.
Diagnostic Procedure 10 (Cont'd) — E.G.R. & Canister Control Solenoid Valve
1
INSPECTION START
2
[A] CHECK OVERALL FUNCTION. 1) Start engine and warm it up sufficiently. 2) Stop engine and jack up drive wheels. 3) Disconnect boost pressure sensor harness connector. 4) Restart engine. 5) Shift selector lever to "1" position, and keep engine speed at about 3,000 rpm. Make sure that E.G.R. control valve spring moves up and down. (Use your finger.)
O.K.
INSPECTION END
N.G.
3
[B] CHECK VACUUM SOURCE TO E.G.R. CONTROL VALVE AND ACTIVATED CARBON CANISTER. 1) Disconnect vacuum hose to E.G.R. control valve and activated carbon canister. 2) Make sure that vacuum exists under the following condition. At idle (In "N" position): Vacuum should not exist. Engine speed is about 3,000 rpm (In "1" position): Vacuum should exist.
N.G.
CHECK CONTROL FUNCTION. 1) Check voltage between E.C.U. terminal 106 and ground under the following condition. Voltage: At idle (In "N" position) — Approximately 0.8V; Engine speed is about 3,000 rpm (In "1" position) — Battery voltage.
CHECK CONTROL FUNCTION. 1) Check voltage between E.C.U. terminal 106 and ground under the following condition. Voltage: At idle (In "N" position) — Approximately 0.8V; Engine speed is about 3,000 rpm (In "1" position) — Battery voltage.
O.K.
4
[C] CHECK COMPONENTS (E.G.R. control valve, B.P.T. valve and activated carbon canister). Refer to "Electrical Components Inspection". (See pages EF & EC-149, 196.)
N.G.
5
Replace malfunctioning component(s).