mrbowtieguy
Active member
I purchased a 2012 jetta tdi with a bad motor at auction site. I found a replacement and have it installed. I can't remember or locate the post dpf temp sensor. there are 4 cables coming off the firewall, 3 temp sensor and a oxy sensor. they are installed in the correct position. now the post dpf sensor has a bung for a temp sensor. I Just don't remember where that part of the wiring harness comes from.