2002 Toyota Camry "engine code 0401" Questions

...engine light came on . OBD code 0401. I have changed the EGR valve and the EGR Vacuum switching valve. I cleared the codea after each repair and again check engine light comes on with OBD code 0401. ...

...code indicates an issue with the EGR valve. Normally, the most common problem is that the EGR valve sticks slightly, in the open position. To correct this condition, and to eliminate a potential for ...

...Ok , EGR modulator . Ok, EGR VSV .Ok, Cleared the code, road tested abount 15 mins , Check Engine lite come back on again with same code p.0401 Check mass flow clean it with a spray d old at auto ...

...code telling me that likely the EGR system somewhere is clogged or dirty enough to impede air flow. I am now down to a possible bad emission part like a VACUM SWITCHING VALVE or something else. What ...

engine light on with resulting code 0401 - Exhaust Gas Recirculation (EGR) Flow Insufficient. Diagnostic code received from a Launch C Reader Generic OBD-II tool on 2002 Ford Ranger 6 Cylinder 4 Liter

code 0401 egr, also engine seems to missfire or code 0401 egr, also engine seems to missfire or hesitate at higher rpm (4000) Ok this is a pretty inexpensive problem if you have some basic mechanical ...

check engine light code 0401 EGR valve insufficient flow and code 0420 Catalytic conveter inefficient How much would it cost to replace the EGR valve and the CAT Converter. Sounds like a bad egr valve

1998 acura 2.5 tl check engine light on inspection code 0401 whats wrong and how do i solve it P0401 means EGR port is clogged or has failed.

...code p 0401 refers to exhaust gas recirculation valve (EGR) system insufficient flow detected ====causes --hose leak/blockage --basic setting not carried out (if applicable)--wiring--EGR valve --EGR ...

resevoir is full why does my low coolant come on and the resevoir is full and i also have the check engine light on with codes P401 &P174 now I have had all the sensors changed along with egr work