Right Bank Running Lean
Right Bank Running Lean I had a check engine light come on. Code was B0521H, lean right bank. I checked it with Predator and found the LTFT on the right bank up around 25 and the STFT adding fuel as well.
Left Bank seems OK. I did add headers, removed the pup cats and left all the O2 sensors in place.
Any ideas?
Left Bank seems OK. I did add headers, removed the pup cats and left all the O2 sensors in place.
Any ideas?
Re: Right Bank Running Lean Exhaust leak maybe? Check your injectors to make sure you dotn ahve any crap in them. I am having a similar problem on a stock setup and i am trying to narrow down that cause of my pass bank going lean also. I have doen everythign changed back to stock MAF from ported, reverted EGR mod so now only thing that is left for me to check is the injectors.
Re: Right Bank Running Lean No, intake has never been off.
A tech suggested a header leak but I don't hear any exhaust leaks. I guess an exhaust leak could do this but I am not sure. Would a leak draw air and cause a lean signal to the O2 Sensor?
A tech suggested a header leak but I don't hear any exhaust leaks. I guess an exhaust leak could do this but I am not sure. Would a leak draw air and cause a lean signal to the O2 Sensor?
Re: Right Bank Running Lean One thing I did notice was that both bank LTFT were +. The left bank LTFT were running around +5 to +7 most of the time. STFT was adding and subtracting depending on driving conditions.
Also found a code P0101 , MAF malfunction. Makes me wonder if the MAF was really leaning out right side more than left. Is that possible?
Also found a code P0101 , MAF malfunction. Makes me wonder if the MAF was really leaning out right side more than left. Is that possible?
