F0: DATA LIST
|
No.
|
TECH 1 Display
|
Conditions for Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
23
|
INJECTION PULSE
|
Engine running at idle speed
Operating temperature
|
2.0 to 2.8 ms
|
38,39
|
16,14
|
This test step serves as a learning and checking value for
better comprehension of the system and to evaluate the system on external
influences.
The injection period is composed of several elements which
have an effect on the size of the signal. If the measurements of the following
test steps deviate from the nominal values, carry out trouble-shooting.
|
Test Step No.
|
Check of
|
Further additional causes of the fault are:
|
|
|
|
|
|
|
|
· Lead interruption
from
|
|
01
|
BATTERY VOLTAGE
|
- Fuel pump relay Ter. 87 (+) to injection valves
|
|
02
|
TPS SIGNAL
|
- Control unit Ter. 37 to injection valves
|
|
05
|
INTAKE AIR TEMP.
|
· Pressure regulator
defective
|
|
06
|
COOLANT TEMP.
|
· Jammed injection
valves
|
|
08
|
ENGINE SPEED
|
· Electromagnetic
interference caused by
|
|
12
|
MASS AIR FLOW S.
|
- Ignitionleads(positionfurtherawayfromwiringharness)
|
|
16
|
02 SENSOR
|
- Alternator (worn carbon brushes produce sparks)
|
|
29
|
TPS LOAD SIGNAL
|
· Control unit
defective
|
|
30
|
02 INTEGRATOR
|
|
|
31
|
02 BLM IDLE THR.
|
|
