Table 8, Trouble-shooting Chart
Should these complaints arise, the
test steps marked with a dot must be examined more closely.
Customer Complaint
|
Starter
turns, engine starts poorly or not at all
|
|
|
|
Engine
starts, but then stalls
|
|
|
|
|
Idling
problems (speed, exhaust)
|
|
|
|
|
|
Poor throttle
response, transition problems
|
|
|
|
|
|
|
Engine
misfiring (ignition, fuel injection)
|
|
|
|
|
|
|
|
Poor engine
output/no top speed
|
|
|
|
|
|
|
|
|
Fuel
consumption too high
|
|
|
|
|
|
|
|
|
|
Engine
diesels
|
|
|
|
|
|
|
|
|
|
Engine pings,
knocks
|
|
|
|
|
|
|
|
|
|
|
Engine gets
too hot
|
|
|
|
|
|
|
|
|
|
|
|
Engine stalls
at traffic lights
|
|
|
|
|
|
|
|
|
|
|
|
|
Telltale on
prmanently or intermittently
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Possible causes
|
Test
Step No.:
|
Trouble Codes
|
|
·
|
|
|
|
|
|
|
|
|
|
·
|
|
BATTERY
VOLTAGE
|
01
|
49
|
|
·
|
|
|
|
|
|
|
|
|
·
|
|
|
RON CODING
|
02
|
|
|
·
|
·
|
·
|
·
|
·
|
·
|
|
|
|
|
·
|
|
COOLANT TEMP.
|
03
|
14, 15
|
|
·
|
·
|
·
|
·
|
·
|
·
|
|
|
|
|
·
|
|
INTAKE AIR
TEMP.
|
04
|
69, 71
|
|
·
|
·
|
·
|
·
|
·
|
·
|
|
|
|
|
·
|
|
MAP SENSOR
|
05
|
33, 34
|
|
·
|
·
|
·
|
·
|
·
|
·
|
·
|
|
|
|
·
|
|
TPS SIGNAL
|
06
|
21, 22
|
|
|
|
|
|
|
|
|
|
|
|
|
·
|
Excitation
lead, read off trouble code in F2 mode
|
07
|
|
|
·
|
·
|
·
|
|
|
|
|
|
|
|
|
|
FUEL PUMP
RELAY
|
08
|
29, 32
|
|
·
|
|
·
|
|
|
|
|
|
|
|
·
|
|
PARK/NEUTRAL
SW.
|
09
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Should these complaints arise, the
test steps marked with a dot must be examined more closely.
Customer Complaint
|
Starter
turns, engine starts poorly or not at all
|
|
|
|
Engine
starts, but then stalls
|
|
|
|
|
Idling
problems (speed, exhaust)
|
|
|
|
|
|
Poor throttle
response, transition problems
|
|
|
|
|
|
|
Engine
misfiring (ignition, fuel injection)
|
|
|
|
|
|
|
|
Poor engine
output/no top speed
|
|
|
|
|
|
|
|
|
Fuel
consumption too high
|
|
|
|
|
|
|
|
|
|
Engine
diesels
|
|
|
|
|
|
|
|
|
|
Engine pings,
knocks
|
|
|
|
|
|
|
|
|
|
|
Engine gets
too hot
|
|
|
|
|
|
|
|
|
|
|
|
Engine stalls
at traffic lights
|
|
|
|
|
|
|
|
|
|
|
|
|
Telltale on
prmanently or intermittently
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Possible
Causes
|
Test
Step No.:
|
Trouble
Codes
|
|
|
·
|
·
|
·
|
|
·
|
·
|
|
|
·
|
·
|
|
TORQUE
CONTROL
|
10
|
75,
76
|
|
|
|
|
|
|
|
·
|
|
|
|
·
|
|
VEHICLE SPEED
|
12
|
24
|
|
|
|
·
|
·
|
|
|
·
|
|
|
|
·
|
|
ENGINE SPEED
|
14
|
19
|
|
·
|
·
|
·
|
·
|
|
·
|
·
|
|
|
|
·
|
|
IDLE AIR
CONTROL
|
15
|
35
|
|
|
|
|
·
|
·
|
·
|
·
|
·
|
·
|
·
|
·
|
|
SPARK ADVANCE
|
16
|
42,
64, 41, 63
|
|
|
|
·
|
·
|
·
|
·
|
|
|
|
·
|
·
|
|
O2 SENSOR
|
18
|
13,
44, 45
|
|
|
|
·
|
·
|
·
|
·
|
|
|
|
·
|
·
|
|
O2 INTEGRATOR
|
19
|
13,
44, 45
|
|
·
|
·
|
·
|
·
|
·
|
·
|
·
|
·
|
|
|
·
|
|
INJECTION
PULSE
|
24
|
25,
81
|
|
|
|
|
·
|
|
·
|
·
|
|
·
|
|
|
|
POWER ENRICHMENT
|
26
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Should these complaints arise, the
test steps marked with a dot must be examined more closely.
Customer Complaint
|
Starter
turns, engine starts poorly or not at all
|
|
|
|
Engine
starts, but then stalls
|
|
|
|
|
Idling
problems (speed, exhaust)
|
|
|
|
|
|
Poor throttle
response, transition problems
|
|
|
|
|
|
|
Engine
misfiring (ignition, fuel injection)
|
|
|
|
|
|
|
|
Poor engine
output/no top speed
|
|
|
|
|
|
|
|
|
Fuel
consumption too high
|
|
|
|
|
|
|
|
|
|
Engine
diesels
|
|
|
|
|
|
|
|
|
|
Engine pings,
knocks
|
|
|
|
|
|
|
|
|
|
|
Engine gets
too hot
|
|
|
|
|
|
|
|
|
|
|
|
Engine stalls
at traffic lights
|
|
|
|
|
|
|
|
|
|
|
|
|
Telltale on
prmanently or intermittently
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Possible
Causes
|
Test
Step No.:
|
Trouble
Codes
|
|
·
|
·
|
·
|
·
|
|
|
|
|
|
|
·
|
|
IAC CNTR.
ENABLE
|
28
|
|
|
|
|
|
|
|
·
|
·
|
|
|
|
·
|
|
A/C INFORMAT.
SW
|
29
|
|
|
|
|
·
|
|
|
|
·
|
|
|
|
·
|
|
A/C LOAD
SIGNAL
|
30
|
|
|
|
|
·
|
|
|
·
|
·
|
|
|
·
|
·
|
|
A/C RELAY
|
31
|
|
|
|
|
·
|
|
|
·
|
·
|
|
|
·
|
·
|
|
A/C CUTOFF
|
32
|
|
|
·
|
·
|
·
|
·
|
·
|
|
|
|
|
·
|
·
|
|
CO FUEL
CORREC.
|
33
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
