4.2 v8 sc
PCV. Slowly bringing this old girl back to life, currently dealing with lean codes bank 1 and 2. I’m pretty sure it’s a vacuum leak ltft gets better when i rev. Smoke tested today but couldn’t find a single leak. I took the PCV off and I can blow through it in both directions. Can someone please tell me if this is correct? Thoughts are the Pcv will give me a lean but won’t give me a leak test.
This is my last code to conquer so any help will be appreciated
Please see the thread. I think you’ve read one comment and jumped to conclusions . It’s all there
Which 1 did I read?
You have a “lean code” Which could be caused by your PCV yes, but you have a low fuel pressure reading which funny enough
rail pressure at 1500 rpm is 45 psi which is well within specifications.
Oh 48.5 psi at idle is what I see in the manual I have. (2007 4.2sc)
If you can’t answer simple questions or understand the use of live data then fine.
So crack on pal.
J