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Fault code 118111 mixture too rich bank 2 help.
Had the code a while back with a rail pressure plausibility fault. Cleared and I have since flashed to stock factory tune. After almost 1,000 miles 118111 finally reappeared. No other codes this time. No drivetrain errors or limp mode. Idles perfect, drives perfect.
Hooked up ISTA, and started troubleshooting. Injector test passed. During the O2 test, bank 1 heated up almost instantly, however, bank 2 never heated up. Ran the car for several min at 2k RPMs. So I swapped precat O2s left to right and the problem did not follow.
Mods are MSR intakes, ESS high flow catted downpipes, and Akrapovic exhaust. Originally had the ESS tune with low boost.
There aren't any visible leaks or anything obvious that I can tell. Is it possible I have a leaky injector? Any thoughts?
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