XJ-6 L6-4.0L (1991)
Mass Air Flow Sensor: Customer Interest
Engine - Momentary Power Loss or Stalling
18-38
Momentary Engine Power Loss or Stalling
Diagnosis and Repair
MODEL: 91-94 4.0L Sedans DATE: 4/94
93-94 4.0L XJS
ISSUE:
Investigation has shown that momentary engine power loss and/or stalling can be caused by one or a combination of conditions.
To address these concerns, the following changes have been introduced on production vehicles:
Revised components are available for service of earlier vehicles. Diagnostic and repair instructions are provided in this bulletin.
ACTION:
Diagnosis and Repair (91-94 MY Vehicles)
For complaints of momentary engine power loss and/or stalling (engine restarts immediately), work through the Diagnostic Chart to find and correct all
possible causes. Perform every applicable step, whether or not a fault is found.
After completing the chart and if the vehicle is equipped with MAFS part number DBC 5917 or DBC 10852, continue using the following procedure.
