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Home >> Lexus >> 1997 >> SC 300 Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Engine Controls - Tests W/Codes) >> Circuit Tests >> DTC P0402 - Excessive EGR Flow Detected >> Notes
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DTC P0402 - Excessive EGR Flow Detected: Notes

WARNING: This page is about a different car, the 1997 Lexus SC 400. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction.
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