Honda CR-V 1997 Service Manual page 296

PGM-FI System
Manifold Absolute Pressure (MAP) Sensor (cont'd)
I
P112S1
The scan tool indicates Diagnostic Trouble Code (DTC) P1128: Manifold Absolute Pressure (MAP) lower than
expected.
- The MIL hes been reported on .
- OTC P1128 is stored .
Problem verifk.ation:
1. Turn the ignition switch ON
(11).
2. Check the MAP with the scan
tool.
Is 54.1 kPa (406 mmHg, 16.0 in.Hgl.
1.61 Var high er indicated?
NO
Replace the MAP ,ensor.
YES
I
I
Intermittent failure, system Is Ok
I
at thl' time.
I
P1129
I
The scan tool indicates Diagnostic Trouble Code (DTC) P1129: Manifold Absolute Pressure (MAP) higher than
expected.
- The MIL has been reported on.
- DTC P1129 is stored.
Problem verification:
1.
Start the engine. Hold the
engine at
3,000
rpm
with
no
load lin Park or neutral) until
the radiator fan comes on ,
then let
it
idle.
2.
Check th e MAP with the scan
tool.
Is 43.3 kPa (325 mmHg, 12.8 in.Hg),
YES
I
Intermittent failure. system is OK
I
1.32 Var less indicated?
I
at this time.
NO
Replace the MAP sensor.
11-94