Intake Air Flow Meter Sub-Assy; Camshaft Timing Oil Control Valve Assy - Toyota 2002 Camry Service Manual

10–2
INSPECTION
Air
30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
–20 20
0
(–4) (32) (80)
TEMPERATURE_C(_F)
Valve
2002 CAMRY REPAIR MANUAL (RM881U)
ENGINE CONTROL SYSTEM
VG +B
E2
THA
E2G
5 4 3 2 1
40 60 100
80
(104) (140) (176) (212)
A50378
1 2
A50377
– SFI SYSTEM (2AZ–FE)
1. INTAKE AIR FLOW METER SUB–ASSY
(a) Output voltage inspection.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Using a voltmeter, connect the positive (+) tester
probe to terminal VG, and negative (–) tester probe
to terminal E2G.
(3) Blow air into the MAF meter, and check that the volt-
age fluctuates.
(b) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals 4 (THA) and 5 (E2).
Resistance:
–20_C (–4_F) 13.6 – 18.4 kΩ
20_C (68_F) 2.21 – 2.69 kΩ
60_C (140_F) 0.493 – 0.667 kΩ
2.

CAMSHAFT TIMING OIL CONTROL VALVE ASSY

(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Resistance: 6.9 – 7.9 Ω at 20 _C (68 _F)
(b) Movement inspection.
(1) Connect the positive (+) lead from the battery to ter-
minal 1 and negative (–) lead to terminal 2, and
check the movement of the valve.
NOTICE:
Confirm the valve does not adhere.
HINT:
Bad returning of the valve by entrance of foreign objects causes
subtle pressure leak to the advanced direction. Then, DTC can
be detected.
Author :
10069–01
Date :
1432