P0400 Diagnostic Trouble Code Discussion for April 2017
Exhaust Gas Recirculation System Flow Malfunction
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| Help Request | Posted | |
| 1997 Geo Tracker 1.6L MIL Lamp on VIN: 2CNBJ186XV P0400: EGR System Performance. This truck has a P0400 egr code. I have done a lot of reading on this system and it seems to be very problematic. I understand the EGR monitor to work like this. On decel from a steady cruise, the EGR bypass valve is activated applying full manifold vacuum the... |
April 17, 2017 | |
| 1997 Geo Tracker 1.6L MIL Lamp on VIN: 2CNBJ186XV P0400: EGR System Performance. This truck has a P0400 egr code. I have done a lot of reading on this system and it seems to be very problematic. I understand the EGR monitor to work like this. On decel from a steady cruise, the EGR bypass valve is activated applying full manifold vacuum the... |
April 18, 2017 |
