Bank 2 lean
Bank 2 lean So im at the dyno and every thing was fine pulled 556hp and now all of a sudden bank 2 is running lean where as bank 1 is greag. They tried new wires, plugs, tested the coils, checked fuel injectors andalso used new o2 sensors. Their isnt any error codes that im aware of it's showing on the dyno screen. So my question is if everything is fine as well as fuel pressue then how is one side lean and the other not if every thing is checking out fine. He literally didn't touch it after he shut it off he turned it back on and the idling was weird which is how we knew something was up. Doesnt make sense to any of us.
we checked every thing has the right power. So were assuming grounds and everything is good. It was fine before the dyno pull then we shut the car off and after we turned it on for the final pull that when it all happened.
we did that too. Every thing has power like it should. New plugs coils wires injectors o2 sensors re-torqued the header bolts checked all push rods good rockers are good. No bad valve springs valves or seats. No oil leaks or gas leaks. So we're at a loss compression is good and so is the leak down test. Wtf could it possibly be.
TECH Apprentice
Joined: Sep 2016
Posts: 347
Likes: 10
we did that too. Every thing has power like it should. New plugs coils wires injectors o2 sensors re-torqued the header bolts checked all push rods good rockers are good. No bad valve springs valves or seats. No oil leaks or gas leaks. So we're at a loss compression is good and so is the leak down test. Wtf could it possibly be.
But you have checked the rubber hose inside the fuel pump housing inside the gas tank? Bet it came loose.
