P0400 Diagnostic Trouble Code Discussion for December 2005
Exhaust Gas Recirculation System Flow Malfunction
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| Help Request | Posted | |
| 1997 Geo Tracker 1.6L readiness monitors VIN: 2CNBJ1364V P0400: EGR System Performance. ... 1.6 - came in with mil light on code P0135 - O2 heater circuit - and P0400 -EGR flow - We replaced rear O2 sensor, cleared codes and drove. The mil light stayed out and the O2 code is gone. The readiness monitors - catalyst,EGR,EVAP - did not close. We gav... |
December 09, 2005 |
