3 Series E36 320i (M52) CONVER
If the exhaust idling speed values deviate from specified value:
Interrogate the fault memory of the Digital Motor Electronics.
If the Lambda oxygen sensor fault memory is set to Lambda
regulation, troubleshooting must be continued using special tool
11 7 450 (Lambda oxygen sensor tester).
If exhaust gas measuring screws are installed in the manifold:
Measure exhaust content in front of catalytic converter.
Unscrew bolts (1).
Connect special tool 13 0 080 to exhaust manifold.
Connect measuring sensor on exhaust tester to special tool
13 0 080.
Switch off exhaust extraction system for time of testing.
3) Note:
Before correcting the exhaust/idle setting, first ensure that
there are no malfunctions on the engine, in the ignition system
or the fuel injection system.
For example, if the exhaust/idling speed value is too high:
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Check injector nozzles.
-
Check fuel delivery pressure.
-
Check coolant-temperature sensor.
-
Check air intake system for leaks.
-
Check idling speed valve.
For example, if the exhaust/idle value is too low:
RA Checking engine idle speed and exhaust gas contents (M50,M52,S50,S50US) - vehicl
BMW AG - TIS
06.02.2013 23:09
Issue status (12/2007) Valid only until next DVD is issued
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