P0401 Diagnostic Trouble Code Discussion for February 2010
Insufficient EGR Flow Detected
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| Help Request | Posted | |
| 2003 Ford Expedition XLT 5.4L Poor Idle Quality, Misfire VIN: 1FMFU188L8 P0401: Insufficient EGR Flow Detected (ESM System). ... use. Initial complaint from customer was a rough idle, and rough acceleration. New customer, so I had no maintenance history and customer didn't know either. I pulled codes and retrieved P0401-EGR Insufficient Flow. I foun... |
February 04, 2010 | |
| 2000 Acura RL Premium 3.5L MIL Lamp on VIN: JH4KA9659Y P0401: EGR System Insufficient Flow Detected. I have determined the EGR ports are clogged, however my tech is having trouble removing the upper intake plenum. I looked some but not familiar with these. Alldata shows a picture but no instructions. Do you have to remove the whole assembly or can you seperat... |
February 10, 2010 | |
| 1997 Honda Civic HX 1.6L MIL Lamp on VIN: 1HGEJ7122V P0401: EGR System Insufficient Flow Detected. ... a p1491, EGR lift insufficient. We tested the lift sensor and found inaccurate reading to lift sensor position, so we replaced the EGR valve. A week later the car returned with a p0401, EGR insufficent flow. We removed t... |
February 11, 2010 | |
| 2000 Toyota Camry LE 2.2L MIL Lamp on VIN: 4T1BG22K3Y P0401: EGR System Insufficient Flow Detected. ... Toyota Camry LE came in mill on code P0401. EGR insufficient flow. All EGR components check OK. Please assist Thanks Henry |
February 22, 2010 | |
| 1997 Toyota RAV4 2.0L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: JT3HP10V8V P0401: EGR System Insufficient Flow Detected. customer says that when stopping for a light sometimes that the engine runs rough or stalls then the mil light comes on.The car then runs good for a while. |
February 23, 2010 | |
| 1998 Honda Prelude 2.2L Hesitation, Stall VIN: JHMBB6242W P0401: EGR System Insufficient Flow Detected. ... lite pulled codes and found p0401 and p0420 customer opted to have cat repaired first came back two weeks latter for E G R valve. the valve was replaced pulled the plugs on intake manfolid and cleaned all egr ports all ports where cloged closed put it back... |
February 24, 2010 |
