System Troubleshooting Guide - Honda Prelude 1993 Service Manual

ldle Control System
System Troubleshooting Guide
N O T E :
a Across each row in the chart, the sub-systems that could be sources of a symptom are ranked in the order they should
be inspected, starting with @. Find the symptom in the left column, read acloss to the most likely source.
then refer
to ths page listed at the top ot that column. lf inspection shows the system is OK' try the next system @'
etc'
a lf the idle sDeed is out ot specificstion and the Malfunction Indicator Lsmp (MlLl does not blink Diagnostic Trouble
Code {DTC) 14, go to inspection described on page 11-95.
P A G E
l s u s - s Y s T € M
SYMPTOM
-'\
-
IOLE
ADJUST
ING
SCREW
I D I E A I R
CONTROL
coNDr-
TIONING
SIGNAL
ALIER,
NATOs
F R
S I G N A I
STARTER
swtTcH
srGt'rAL
ERAKE
swtTcH
SIGNAL
STEERING
PFESSUNE
SIGNAL
FAST IDLE
THERMO
STAFTING
H O S E S
A N D
CONNEC.
T I O N S
t t l
9 6
98
1 0 0 102 l 0 4 1 0 6
1 0 4
l09 1 1 0
DIFFICULT TO START
ENGINE WHEN COLO
O
WHEI.{ COLD FASI IDLE OUT OF
SPEC.(1 ,000- 2,000 rpm)
@
@
o
ROUGH IDLE
@
o
WHEN WARM RPiN TOO HIGH
@
O
@ @
@
WHEN
T00 Low
load)
@
o
o
@
o
liomr in ON
@
\,
@
o
@
@
o
FREOUENT
STALLING
WHII,E WARMING
U P
@
o
AFTER WARMING
o
@
FAILS EMISSION TEST
O
11-92