P026A Passat 2.0 tdi after oil cooler swap

Blake214

New member
Joined
Apr 9, 2024
Location
IOWA
TDI
Passat
I just did the typical oil cooler/filter housing swap. Everything went fine but a couple days after I got a p026a. Charged air cooler efficiency below threshold. I didn’t notice any difference driving it. I pulled the sensor off and cleaned it but still having this issue.
 

oilhammer

Certified Volkswagen Nut & Vendor
Joined
Dec 11, 2001
Location
outside St Louis, MO
TDI
There are just too many to list....
Did you run the charge air cooler water pump when you were finished? The CKRA can be difficult to get all the air out of the cooling system.
 
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