running extremely lean

[99BlackW68]

i just installed my supercharger and i have a 6:1 FMU. all the connections are correct. i also installed an air to fuel ratio gauge, and it is wired correctly also. the gauge says that i am running extremely lean, and the smell of my exhaust agrees with that. also, my tailpipes are a sooty black now when yesterday they were nice and shiny. how can i fix this problem of running too lean?

[02camaro3800]

Re: running extremely lean

i think black is rich bud? stop listening to that narrowband

[Crazed98Camaro]

Re: running extremely lean

Yeah, Make sure you get a wideband.
Cost upwards of 275 or so.

Stock is narrowband.
Will look something like this
http://www.youtube.com/watch?v=npNeb...eature=related

[99BlackW68]

Re: running extremely lean

wow thats rediculous. well at least those flash from stoich to rich back to stoich then to lean and whatnot. mine just sits at as lean as you can get. 275 is too expensive...im gettin HP tuners eventually and that'll let me know whats up. i just dont want to be driving around if im lean.

[bigbrian442]

Re: running extremely lean

HPtuners does not come with a wideband. You have to provide your own.

[99BlackW68]

Re: running extremely lean

oh, good call :D

[ssms5411]

Re: running extremely lean

You have to pay to play. Esp. safely.

[97rs4life]

Re: running extremely lean

wow thats rediculous. well at least those flash from stoich to rich back to stoich then to lean and whatnot. mine just sits at as lean as you can get. 275 is too expensive...im gettin HP tuners eventually and that'll let me know whats up. i just dont want to be driving around if im lean.

if it doesn't move then your connection to your o2 wire is loose or disconnected. The a/f gauges for narrowbands are literally a light show as they are all over the place. I would check your wire connections

[techsan23]

Re: running extremely lean

if you put a fuel press gauge on your fuel rail and nail the throttle linkage you should see it jump from 45 to about 70psi. if not the fmu isnt working properly.

[99BlackW68]

Re: running extremely lean

yeah im installing the fuel pressure gauge now so we'll see in a little bit!