Check engine light issues

RANGER26

New member
Joined
Jul 4, 2019
Location
Redding, CA
TDI
2005 JETTA WAGON
dealer said my 05 jetta tdi wagon had a failed mass air flow sensor so I replaced and cleared the check engine light. They also said to replace the egr pipe which I ordered but haven't replaced yet. Any thoughts as to the egr pipe and check engine light or issues related to the egr pipe in general. Thanks
 

Tankthecarman

Well-known member
Joined
Jan 29, 2017
Location
United States
TDI
2001 Jetta ALH TDI 5spd
Have you entertained the idea of EGR delete? I did a simple EGR block off, but have not gotten a ECU reflash to eliminate the CEL.
 

VWfan2020

New member
Joined
Oct 22, 2020
Location
Las Vegas, NV
TDI
2013 VW Golf TDI
issues with tampering with EGR valve:
1) Will automatically fail a smog test upon inspection (that is if you don't put it back before testing)
2) May cause your engine to run hotter than normal ( leads to possible knock)
3) Possible damage to catalytic converter
 
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