Subaru XT 1988 Service Manual page 307

2-7
FUEL INJECTION SYSTEM
(15) Race engine above 2,000 rpm.
(16) While idling the engine, monitor voltage across
terminal (LgR) of the air flow meter connector and the
body. (OV under normal operating conditions is OK.)
Fig. 29
Control unit
38 LgR
12 R
5
e
(17) Turn the ignition switch OFF. Check if 12 volts are
present across the terminal LgR and the body for one
second shortly after the ignition switch has been turned
OFF. If not, check the harness from the control unit to
the air flow meter for discontinuity.
Air flow meter
2~L---------------------------------------------------------~
27~~-----I
35
39 GW
®
I I
I
I
I t'l
I
I: 1 I
@
Ignition relay
Fig. 30
~
GEl
@)
20
Diode
®
Fuse No. 11
1------+---+---<>"""....,o---oEljIG
(f}e
L2·1202