Acura 1994 Integra Service Manual page 245

PGM-FI System
Manifold Absolute Pressure
l F r o m p a g e 1 1 - 5 3 )
{MAPI Sensor (cont'd)
(From paqe 1 1-53)
NO
M6asure voltage between D17
{ + ) t e r m i n a l a n d 0 2 1 ( - }
terminal.
ls there approx. 3 V?
Substituto 6 known{ood ECM
.nd rach.ck. It symptom/indica-
tion gooa away, Eplaco tho orlgi-
nrl €CM.
Turn the ignition switch OFF.
Connect the test harness "D"
connector to the ECM only. not to
the main wire harness lsee page
1 1 - 3 7 ) .
Turn the ignition switch ON.
Measure voltage botwson Dl7
( + ) t e r m i n a l a n d D 2 1 { - }
terminal.
R.p.lr opon or ahort in WHT|rEL
wi?o botw.on ECM {O17) and tho
MAP senso..
ls there approx. 5 V?
Substitute a known{ood ECM
and rochsck. It prdcribed voltrgo
b now availablo, rophce trie origi-
nal ECM.
approx. 3 v?
-
D 1 7 t i l D 2 1 ( - l
o o o o o o o o o o o o o I o o o o o o o o l l 5 o i E € t d l 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
11-54
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