Every few months i get a left bank lean code and CEL light on, any ideas? I have a cammed 5.3, LS2 injectors, Walbro pump, Nelson 93 tune, headers, ORY. Just installed new O2's about 3,000 miles ago.
Left bank going lean
Every few months i get a left bank lean code and CEL light on, any ideas? I have a cammed 5.3, LS2 injectors, Walbro pump, Nelson 93 tune, headers, ORY. Just installed new O2's about 3,000 miles ago.
2012 Ford F-150 Ecoboost Super Crew 4x4, stock and staying that way.
2001 chevy green = LS1 stock, 3k stall, 373 posi, tuned by LSX Power in CS TX
check your MAF. mine was doing that same thing for a while, and it eventually got to where it would ping pretty good under load. after a lot of testing and trial and error, it turned out to be my MAF. replaced it and haven't had any problems since.
2000 ECSB 5.3L with K&N CAI, true duals with flowmaster 40s, and 200k miles!
So I replaced the MAF once with a used unit and it seemed to fix it for a while and now the problem is popping up again. Im using a AEM dry flow filter also.
2012 Ford F-150 Ecoboost Super Crew 4x4, stock and staying that way.
2001 chevy green = LS1 stock, 3k stall, 373 posi, tuned by LSX Power in CS TX
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