Open header read fresh air?
Open header read fresh air? I just put an ls1 back in the car with 30lb injectors and mild cam. We kept messing with the tune and the computer keeps trying to add as much fuel as possible. We even put a complete stock tune with 30lb injector tables in but the long term keeps maxing at 25 and the short term goes to add over 40 before I cut the car off. Can the O2s be reading fresh air because its open header?
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had a question about this as well but not dicrectly abuot open headers. If i have a leak between the cat and the LT headers, will this cause a fresh air condition as well with the O2 sensors? i have a NOTICABLE leak on my passenger side collector due to a horrible weld job that is failing now after two years on my SS steal headers to aftermarket cats. kinda pissed.
but would this cause irregular running conditions?
but would this cause irregular running conditions?
It actually recommended (at a minimum) to add 10X the collector diameter in pipe length to avoid the O2s from reading outside air. So for a 3" collector you'll want 30" of pipe.
had a question about this as well but not dicrectly abuot open headers. If i have a leak between the cat and the LT headers, will this cause a fresh air condition as well with the O2 sensors? i have a NOTICABLE leak on my passenger side collector due to a horrible weld job that is failing now after two years on my SS steal headers to aftermarket cats. kinda pissed.
but would this cause irregular running conditions?
but would this cause irregular running conditions?
