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P1140 Diagnostic Trouble Code Discussion for December 2005

Intake Valve Timing Control Position Sensor Circuit Malfunction (Bank 1)

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Trouble Ticket Help Requests for DTC P1140
Help Request Posted
1998 BMW 740iL 4.4L Poor Idle Quality, MIL Lamp on VIN: WBAGJ8320W
P1140: maf sensor problem. ... ecm for codes and find; p1140 maf related problem. hook lab-scope to maf and verify maf signal return volts stuck at 1.2v. replace maf sensor and road test vehicle no mil light. go to restart vehicle and mil light comes back on. recheck for ecm codes and g...
December 30, 2005