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the p0401 code is for low egr pressure you a dealership will twell you you need to replace the egr valve also know as the dpfe sensor all you really need to do is clean out the line a pipe cleaner and a can of brake-parts cleaner will do the trick its simple and only takes about a hour of time
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How do you troubleshoot P0401 and P0171 obdII fault codes on a 1997 Buick lesabre?
p0401 is lack of egr flow p0171 is bank 1 lean So we have two problems that are commonly related, often accompanied by high idle that will not return to normal. With out high idle problem you may have a pluged EGR or Vacume leak at the EGR system. THe High idle is definately a clue that you have leak in the EGR system.
What do engine codes P0153 P0171 P0304 P0401 have in common on a ford 4.0?
P0153 02 Sensor Circuit Slow Response (Bank 2 Sensor 1) P0171 System too Lean (Bank 1 P0304 Cylinder 4 Misfire Detected P0401 Exhaust Gas Recirculation Flow Insufficient Detected
What does the codes P0401 means on a 1999 Mercury Cougar?
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
What do this codes mean po174po171po401and po420?
The codes you mentioned are OBD-II trouble codes that indicate specific issues in a vehicle's engine and emissions system. P0171 and P0174 indicate a lean condition, meaning the engine is receiving too much air or not enough fuel. P0401 signals an issue with the exhaust gas recirculation (EGR) system, specifically insufficient flow. P0420 points to a problem with the catalytic converter's efficiency. Each code suggests a different area of concern that may need diagnostic testing and repair.
Computer codes for 1998 dodge avenger?
I received these error codes for my 1998 Dodge Avenger, 6cyl. 2.5 What does these codes mean? Where would I start to fix these issues? ~THANK YOU ~ P0108 P1297 P0401
What do the codes po401 and po402 mean on a 1997 Ford explorer?
P0401 - EGR flow insufficient , P0402 EGR flow excessive
1998 escort 2.3 DTC P0351 ans P0401 help?
2.0L perhaps? p0351= intergrated ignition coil failure (possible # 1 coil failure or short, start/run circuit issue, bad PCM p0401= EGR (flow problem),valve problem, solenoid problem, possible hoses, maybe even the PCM
How do you fix error code p0401 vw?
simple buy a new car with no alarm like this...problem solve :P
What is code p0401 for 2004 Chevy Impala?
P0401 = Insufficient EGR Flow
How do you figure out what is wrong when you get a P0113 and a P0401 codes?
Easiest and cheapest(depending on where you live) is to go to a parts store and look in a Haynes manual for your make and model vehicle
What p0401 means?
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Lincoln Navigator p0401 causes?
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
