I have all the current mods are in my sig and I just added the licp....car is smoother but sounds louder. I readjusted my boost to 21psi....I've just been worried becuase I've heard when your muffler gets white instead of black inside its poossible your lean, I'm going to plug my evoscan in today and check my knock but I don't have a wideban yet.....any opinions?

 

Use mitsulogger and log your car along with the evoscan. It should give you a bit of an idea on how its running. The narrowband readings would give a bit of an insight, but not as clear as a wideband.

 

What kind of gas are you using, pump or race? Some race fuels will leave deposits in the exhaust like you are speaking of.

 

So as long as I'm not knocking more than 4 I believe when I go wot on evoscan I'm good? I'm just making sure I'm safe driving right now untill I get my o2 wastegate and tune.

 

91 pisstaine california gas :[

 

If your really worried about it turn down your mbc to 20psi thats what i run :P

 

ok well i hooked the car up to evo scan and none of my knock sum is ever above 3....so i should be good right? is there anything else i should check?

 

Injector duty cycle.. by calculating the injector pulse width
Even if it doesn't knock you can still run lean.