Originally Posted by sohc_mshue
yea that is going quite lean. You say that with the o2 mounted in the tailpipe and in the downpipe it read that lean, while your personal wideband read much richer? Thats strange that it would still read off even in the downpipe where it needs to be.
The dyno wideband was in the DP....it was designed to be in the tailpipe. It possibly overheated since the DP is upstream and gave a bad reading