P0401 Diagnostic Trouble Code Discussion for May 2006
Insufficient EGR Flow Detected
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| Help Request | Posted | |
| 1998 Toyota Camry CE 2.2L MIL Lamp on, po401 VIN: 4T1BG22KXW P0401: EGR System Insufficient Flow Detected. egr system working fine but fails system test when car is road tested |
May 03, 2006 | |
| 1999 Ford E-250 Econoline 4.2L MIL Lamp on VIN: 1FTPS2425X P0401: Low EGR Flow. Mil is on with PO401 "low EGR Flow" in memory. I performed the complete test in Alldata. DPFE Sensor tests good and EGR valve opens. The end result of the Alldata test is to check EGR vacuum passages and orifice tube. I removed the valve and started th... |
May 11, 2006 | |
| 1998 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K4W P0401: EGR System Insufficient Flow Detected. hello, vehicle came in with a 40441 put on new vapor pressure sensor vsv. cleared light and now is back on. Smoked evap sytem for leaks no leaks found. do not have a scan tool to open and close all my vsv for evap sytem. did manually check to see if both vsv w... |
May 11, 2006 | |
| 2001 Toyota Camry LE 3.0L MIL Lamp on VIN: 4T1BF22K01 P0401: EGR System Insufficient Flow Detected. Hello everyone. I am attempting to fix a toyota for a friend. We are a Mercedes specialty shop so I don't have the proper scan tools for this vehicle. A shop next door pulled the codes using a snap on scanner. I had three codes at first po401, po402 and anothe... |
May 11, 2006 | |
| 1997 Ford F-150 4.2L Hesitation, Misfire, MIL Lamp on VIN: 1FTEF1723V P0401: insufficient egr flow detected. ... picked up @auction last week. Check engine light was on p0401 and engine stumbled on light accel (also in park and 1700-2200 rpm).replaced dpfe sensor due to sticking.removed egr valve and egr plate.intake etc. not pluged. At around 100f in park bring rpms... |
May 27, 2006 |
