Do not continue with check until an 8 digit number block 00000000 appears in the 4th display zone.
Note:
If at one or more positions a 1 is displayed in display zone 4, the test conditions have not been fulfilled:
; Relevance of figures in 8 digit number block
-
‒ Check ignition timing at 2000...2500 rpm.
Specification: about 6° before TDC fluctuating1)
1)
Up-to-date specifications:
=> "Exhaust test" binder
-
‒ Allow engine to idle for at least 1 minute.
-
‒ Read Lambda voltage in display zone 3. Lambda voltage must fluctuate by
more than 0.3 V.
-
‒ End the engine basic setting by pressing the⇒ button. When doing this the radiator fan must not run.
-
‒ Input 06 for "End output" and confirm with Q.
If the specifications are not obtained:
-
‒ Check air intake system for leaks (leakage air)
=> Page 24-72
.
-
‒ Check exhaust system between cylinder head and catalyst including CO sampling pipe for leaks.
-
‒ Check Lambda probe and Lambda control.
-
‒ Carry out road test, then repeat fault memory interrogation and basic setting.
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