P0401 Diagnostic Trouble Code Discussion for May 2018
Insufficient EGR Flow Detected
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| Help Request | Posted | |
| 2000 Oldsmobile Intrigue GL 3.5L MIL Lamp on VIN: 1G3WS52H2Y P0401: EGR Flow Insufficient. ... FACTORY EGR valve replaced at another shop due to a code P0401. During a road test, the EGR command signal matches EGR opening (25% to 50%) Removal of the EGR valve revealed a very clean intake and exhaust passage. With engine running at 2500 rpm, I m... |
May 25, 2018 |
