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Home >> Chevrolet >> 2003 >> Impala LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0404: EGR Open Position Performance >> Conditions For Setting DTC
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Conditions For Setting DTC

The difference between the EGR position sensor parameter and the desired EGR position parameter is more than 15 percent. The conditions must be met for more than 20 seconds.