Honda CB900F Service Manual page 103

FUEL SYSTEM (Program m ed Fuel Injection)
Turn the ig nition switch ON .
Out of range
Measure the voltage at the test harness termi-
nals (page 5-9).
e ~EB
, z z • , •
J • • ,. "
z z •
I •
_
..
""
[ = =1
I
:1
12" ' ••• • 11 " .. 10111 21
u n •• ", ., ",."a n D
Connection: B7 1+1 - B1 H
Stan dard : 2.7 - 3.1 V (760 mm Hg /1.013 kPal
f
Voltage exists
Start the engine .
Out of range
Measure the voltage at the test harness termi-
nals (page 5-91.
e ~
EB
, z • •
I • 7 I • " 11
: z •
5 I • t
.0"
[==1
:1
12" ,. to , . 11 '" , . 20 2 ' U 1, . " ,. 15 ' 1 11 11 " 20 21 22
Connection : B7 (+) - B1 H
Sta ndard: 2.7 V m axim um
I
Voltage exists
• Faulty MAP sensor
• Faulty MAP sensor
Replace the ECM w ith a new one, and inspect
it again
5-15