pd bpw problem

webo

Member
Joined
Sep 6, 2023
Location
norway
TDI
golf bkd 140
hi, we had bad readings on bank 13, injector 1,3 was 3,0, opened up and found injector 1,2 had deformed in the body, although 2 had ok reading.
we changed all injectors, with used ones, still had bad reading on injector 3, then we took a known good injector from first attempt and replaced nr 3, but still have 2,99 steady on nr 3, we have no codes, and engine run on all 4, but rough idle, what would be next step to investigate, thinking wire loom would throw codes if bad?
could compression be an issue?
just to mention, we replaced cam and lifters last year, as lobes was gone and lifters had holes, performance has not changed, and rough idle was also present before replacement and after.
thanks
 

Yaro

Member
Joined
May 19, 2025
Location
Socal
TDI
2013 Jetta TDI
That steady 2.99 on injector 3 definitely sounds like something deeper. Since you’ve ruled out the injector itself, compression could absolutely be worth checking, especially with that cam/lifter history.
 
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