Honda Acura NSX 1991 Service Manual page 307

(From page 1 l-l 30)
Connect the battery positive ter-
minal to the A terminal of the 6P
connector. While watching the
vacuum gauge, connect the bat-
tery negative terminal to the D
terminal.
Turn the ignition switch OFF and
reconnect the 6P connector.
Connect the test harness between
the EGR valve lift sensor and
engine wire harness.
Measure voltage between GRN
Is there approx. 5 V 7
YES
(To page 1 l-l 32)
Turn the ignition switch OFF and
inspect the #I and #5 hoses for
leaks, r e s t r i c t i o n s , o r mis-
routing.
Are the hoses OK?
TEST HARNESS
Disconnect the lower hose on
EGR control solenoid valve and
idle.
Is there 6"- 10" of vacuum 7
between EGR valve and ECU
wire between EGR valve and
ECU (D22).
N O
Connect as necessary.
SOLENOID
VACUUM PU
I
CVC VALVE
Replace CVC valve.
(cont'd)