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LS system on 6.0 ls2 running very rich at idle, no power.
#1 · March 12, 2020, 5:08 pm
I have a 2006 ls2 6.0 from a trailblazer ss all stock except injection. it run very rich at idle. we have 55 psi fuel pressure, afr seems to hang about 10.4-11. idle isn't real rough but the black smoke will kill you. the adapts seem to hang at -32 or so. screenshot of datalog included. or would be if I could get it to upload... how do you add a log file?
#2 · March 20, 2020, 9:57 am
i had same problem for me it was a header gasket leak
#3 · April 27, 2020, 1:46 pm
Could be a few things; what is your cam setting? Also, where are your O2 bungs located on the exhaust? Are you running a regulator? Are you running a return line to the tank? Is the tank vented?