
-202-
-202-
2.
2.
Disconnect the electrical connector of oxygen
Disconnect the electrical connector of oxygen
sensor
sensor
3.
3.
Remove oxygen sensor
Remove oxygen sensor
(1) Ignition wiring harness (2) Ignition Coil Assy (3) Spark plug
(1) Ignition wiring harness (2) Ignition Coil Assy (3) Spark plug
Maintenance Section
Maintenance Section
Checking the TMAP Sensor
Checking the TMAP Sensor
(G420F(E)/G424F(E) Engine Only)
(G420F(E)/G424F(E) Engine Only)
1.
1.
Verify that the TMAP sensor (F) is mounted
Verify that the TMAP sensor (F) is mounted
tightly into the manifold adapter (E), with no
tightly into the manifold adapter (E), with no
leakage.
leakage.
2.
2.
If the TMAP is found to be loose, remove the
If the TMAP is found to be loose, remove the
TMAP retaining screw and the TMAP sensor
TMAP retaining screw and the TMAP sensor
from the manifold adapter.
from the manifold adapter.
3.
3.
Visually inspect the TMAP O-ring seal for
Visually inspect the TMAP O-ring seal for
damage.
damage. Replace
Replace as
as necessary.
necessary.
4.
4.
Apply a thin coat of an approved silicon
Apply a thin coat of an approved silicon
lubricant to the TMAP o-ring seal.
lubricant to the TMAP o-ring seal.
5.
5.
Re-install the TMAP sensor into the manifold
Re-install the TMAP sensor into the manifold
adapter and securely tighten the retaining
adapter and securely tighten the retaining
screw.
screw.
Inspect for Intake Leaks
Inspect for Intake Leaks
(G420F(E)/G424F(E) Engine Only)
(G420F(E)/G424F(E) Engine Only)
1.
1.
Visually inspect the intake manifold, throttle
Visually inspect the intake manifold, throttle
assembly (2), and manifold adapters (3), for
assembly (2), and manifold adapters (3), for
looseness
looseness and
and leaks.
leaks. Repair
Repair as
as necessary.
necessary.
Replace PCV Valve and breather
Replace PCV Valve and breather
element - Change (LP, Gasoline and
element - Change (LP, Gasoline and
Dual Fuel Engines)
Dual Fuel Engines)
G420F(E) Engine
G420F(E) Engine
G424F(E) Engine
G424F(E) Engine
1.
1.
Loosen the hose clamps and remove the PCV
Loosen the hose clamps and remove the PCV
valve.
valve.
2.
2.
Assemble new PCV valve and hose.
Assemble new PCV valve and hose.
3.
3.
Tighten the hose clamps
Tighten the hose clamps
Summary of Contents for G20E-5
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