DTC P0401 Cadillac
Insufficient EGR Flow Detected
Insufficient EGR Flow Detected
Description
DTC P0101-P0103, P0106-P0108, P0112-P0113, P0116-P0118, P0121-P0123, P0125, P0128, P0200, P0300, P0410-P0446, P0452-P0453, P1258, P1415-P1416 and P1441 not set, engine started, vehicle driven to over 12 mph at an engine speed of 1000-1500 rpm, system volt
Cause and Solution
Base engine problem or any other problem that causes the engine to run poorly
EGR passages or intake passages clogged or restricted
EGR pipe is clogged, dirty or otherwise restricted
EGR vacuum hoses damaged, loose or routed incorrectly
Video Guide
Diagnostic Info
- DTC Code: P0401
- Brand: Cadillac