Throttle Body: Service and Repair
REMOVAL1. DRAIN ENGINE COOLANT
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
3. REMOVE ENGINE COVER
a. Remove the 2 nuts and engine cover.
4. REMOVE AIR CLEANER CAP
a. Disconnect the mass air flow meter connector.
b. Disconnect the purge VSV connector.
c. Remove the wire harness clamp.
d. Disconnect the No. 2 ventilation hose from the cylinder head cover.
e. Disconnect the purge line hose from the purge VSV.
f. Disconnect the purge line hose from the throttle body.
g. Lock the No. 1 air cleaner hose clamp, and then disconnect the No. 1 air cleaner hose from the throttle body.
h. Unfasten the 2 hook clamps, and then remove the air cleaner cap.
i. Remove the air cleaner filter element from the air cleaner case.
5. REMOVE THROTTLE BODY
a. Disconnect the water by-pass hose from the throttle body.
b. Disconnect the No. 2 water by-pass hose from the throttle body.
c. Disconnect the No. 1 throttle body hose from the throttle body.
d. Disconnect the throttle position sensor and control motor connector.
e. Remove the wire harness clamp.
f. Remove the fuel tube from the clamp.
g. Remove the 4 bolts, and then remove the fuel pipe support and throttle body.
h. Remove the gasket from the intake manifold.
INSTALLATION
1. INSTALL THROTTLE BODY
a. Install a new gasket onto the intake manifold.
b. Install the throttle body and fuel pipe clamp with the 4 bolts.
Torque: 30 N.m (305 kgf.cm, 22 in.lbf)
c. Fit the fuel tube into the clamp.
d. Install the wire harness clamp.
e. Connect the throttle position sensor and control motor connector.
f. Connect the No. 1 throttle body hose to the throttle body.
g. Connect the No. 2 water by-pass hose to the throttle body.
NOTE: Make sure that the paint mark and hose clamp are at the correct angle.
h. Connect the water by-pass hose to the throttle body.
NOTE: Make sure that the paint mark and hose clamp are at the correct angle.
2. INSTALL AIR CLEANER CAP
a. Install the air cleaner filter element onto the air cleaner case.
NOTE: Make sure that the air cleaner filter element is in the correct direction when installing.
b. Insert the hinge part of the air cleaner cap into the air cleaner case, then hang the 2 hook clamps.
c. Align the matchmarks of the No. 1 air cleaner hose and throttle body, and then connect the air cleaner hose No. 1 to the throttle body and unfasten the No. 1 air cleaner hose clamp.
NOTE: Make sure that the hose clamp is at the correct angle.
d. Connect the purge line hose to the throttle body.
NOTE: Make sure that the paint mark and hose clamp are at the correct angle.
e. Connect the purge line hose to the purge VSV.
NOTE: Make sure that the paint mark and hose clamp are at the correct angle.
f. Connect the No. 2 ventilation hose to the cylinder head cover.
NOTE: Make sure that the paint mark and hose clamp are at the correct angle.
g. Install the wire harness clamp.
h. Connect the purge VSV connector.
i. Connect the mass air flow meter connector.
3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
4. ADD ENGINE COOLANT
5. CHECK FOR ENGINE COOLANT LEAKAGE
6. INSTALL ENGINE COVER
a. Install the cover with the 2 nuts.
Torque: 7.0 N.m (71 kgf.cm, 62 in.lbf)
7. PERFORM INITIALIZATION
a. Perform initialization
NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.