P0401 Diagnostic Trouble Code Discussion for April 2013
Insufficient EGR Flow Detected
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| Help Request | Posted | |
| 2002 Ford F-150 King Ranch 4.6L MIL Lamp on VIN: 1FTRW07682 P0401: Egr low flow. have codes p0171 and p0401 replaced bank 1 o2 and DPFE but codes keep coming back.spray carb cleaner on intake but cannot find a vacuum leak.pcv hose looks ok.i put vacuum on egr with engine running and it makes no difference how engine runs so i pulled valve ... |
April 03, 2013 | |
| 1997 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K7V P0401: EGR System Insufficient Flow Detected. Hey Toyota techs, I have this camry that runs fine but has a check engine light on with code Po401(EGR Insufficient flow). The customer had the EGR valve replaced elsewhere but still has the light on. I have cleared it but it comes back. Is there a common recu... |
April 03, 2013 | |
| 1999 Daewoo Leganza SE 2.2L Excessive Emissions VIN: KLAVB6929X P0401: Egr flow insufficient detected. ... this one. Customer came in with this project, cant smog it because the ck engine lamp is on. Monitored EGR function with a Waekon tester. EGR works fine and EGR lift sensor reading w/i spec. but no engine stumble when activated. Removed EGR valve and found... |
April 29, 2013 | |
| 1999 Daewoo Leganza SE 2.2L Excessive Emissions VIN: KLAVB6929X P0401: Egr flow insufficient detected. ... this one. Customer came in with this project, cant smog it because the ck engine lamp is on. Monitored EGR function with a Waekon tester. EGR works fine and EGR lift sensor reading w/i spec. but no engine stumble when activated. Removed EGR valve and found... |
April 30, 2013 | |
| 1999 Toyota Camry LE 2.2L Stall, MIL Lamp on P0401: EGR System Insufficient Flow Detected. First and for most let me express my thanks to all that may take time to help and guide me with this head banger! 12-28-13 car comes in with po401(egr insufficient flow) fellow tech diaged egr vacuum modulator as problem and replaced.3-1-13 car returned same c... |
April 30, 2013 |
