LB7: 04 LB7 possible injector issue???

Josh2002cc

That Uncle
Apr 2, 2007
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Why not take it to the dealer and pay the 50 bucks to have them tell you excactly what's wrong with a Tech II?

Nothing wrong with that at all, but does a tech two tell you how much return fuel is being processed or is the only way to know to use a tech two?
 

duramax3388

Member
May 22, 2008
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Zanesville Ohio
I believe they measure the amount of fuel coming back through the return lines. I think they measure it manually though, not with TechII.

yep i am not sure how they really do it but they do manually check how much gets returned but they do use the techII to make sure the cp3 and everything else is working right they charged me 189$ to check the injectors on mine a few months ago