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

10069–01
32145
–20
0
20 40 60
80
100
0.1
0.2
0.3
0.5
1
2
3
5
10
20
30
TEMPERATUREC(F)
RESISTANCE kΩ
(–4) (32) (80) (140)(104) (212)(176)
Air
E2
THA
VG
E2G
+B
A50378
12
Valve
A50377
10–2
–ENGINE CONTROL SYSTEM SFI SYSTEM (2AZ–FE)
1432Author: Date:
2002 CAMRY REPAIR MANUAL (RM881U)
INSPECTION
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.