Honda Prelude 1993 Service Manual page 359

{From page 1 1-'l 17}
Reconnect the 2P connector to
the tuel iniector.
Turn the ignition switch OFF.
Connect the test harness betwoen
the ECM and connectors (see
p a g e 1 1 - 4 5 ) .
Turn the ignition switch ON.
Measure voltage between A23
{ - )
t e r m i n a l a n d f o l l o w i n g
termrnal:
. No. 1 tuel iniector:
A 1 { + ) t e r m i n a l .
. No. 2 fuel iniector:
A 3 ( t ) t e r m i n a l .
. No. 3 fuel injector:
A5 {+ | terminal.
. No. 4 tuel injector:
4 2 { + ) t e r m i n a l .
Ropair op6n in tha wire batwoon
the ECM (A1, A3, A5 or A2) and
tho luol inioctor.
ls there battery voltage?
( F r o m p a g e 1 1 - 1 1 7 )
Rgpair op6n in tho
YEL/BLK wire botws6n
the inioctor resistot and
tho PGM-FI main ,olaY.
Testthe injector resistor (see page
1 1 - 1 2 1 1 .
B€pair op6n RED/BLK wiro bo-
twe€n lhe 2P connocto. end inioc-
tor roaistor.
Fuel Supply System
Fuel Injectors (cont'dl
13. rott.*t
$Li6iiitl'--
A 1 { + } l A 5 l + )
Substilute a known-good ECM
and rechock. ll symptom/indica-
tion goos away, roplace tho origi
nal ECM.
o o o o o o o o o o o
o o o o o o o o o o o
o o o o o o o o
o o o o o o o o
o o o o o o o o o o
o o o o o o o o o o o o
1 1 - 1 1 8