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PGM.FI
Misfire
System
Detected in One Cylinder (cont'd)
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Troubleshooting Flowchart
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NOTE:
.lf there is no freeze data of misliring,
just clear the DTC.
'lf there is no freeze data of misfiring,
t e s t d r i v e s u n d e r v a r i o u s c o n d i t i o n s
The MIL has b6€n reported on.
DTC P0301, P0302, P0303 0r
P0304 is indicated.
Check the fuel iniector function:
S t a n t h e e n g i n e , a n d l i s t e n f o r a
c l i c k i n g s o u n d a t t h e f u e l i n j e c t o r
i n t h e p r o b l e m c y l i n d e r .
Check for an open or shon in the
h a r n e s s b e t w e e n E C M a n d t h e
fUel injector.
Repair open or short in the wiro.
-
Replace tho luel inisctor.
-
Sub3titute a known-good
ECM and rach€ck. It symptom/
indicrtion 90e3 away, replace
the original ECM.
Problem ve.ification:
1. After checking the freeze data,
do the ECM Reset Procedure.
2. Exchange the spark plug from
the problem cylinder with one
of another cylinder.
3. Connect the SCS service con
nector.
4. Test-drive the car several times
in the range of the treeze data.
( T o p a g e 1 1 - 8 1 )
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Table of Contents
Troubleshooting
