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P0400 Diagnostic Trouble Code Discussion for September 2005

Exhaust Gas Recirculation System Flow Malfunction

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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
1996 Geo Tracker 1.6L MIL Lamp on VIN: 2CNBJ1366T
P0400: EGR System Performance. Running trouble shooting tree on Mitchells and alldata does not show up any problems. All tests pass. The Egr solenoid does nor energize from the computer control. Wiring to computer checks out ok. Can trigger solenoid from computer cable. The Computer is not ...
September 24, 2005