Hopefully someone can help figure out my EGTs... they seem too low compared with my wideband figures. I am trying to see if it is my timing being too advanced due to the AFC being leaned out roughly -38%. I am thinking this will advance the timing and therefore is causing the EGT's to run alot lower. I also fo have a very slight exhaust leak right before the "cat" and the wideband is plugged right after the "cat".. it is not a large leak but could that in any way make the wideband think it is leaner than the car really is? To look at the log you need to have the zietronix software on your pc (Get it here for free if you dont have it: www.zeitronix.com ). This is the first "tuning session" I had with the new set-up (Not great but better). I also didn't have the boost sensor hooked up at the time so you wont see that but it shouldn't matter too much for this. Thanks guys, any help is appreciated... I am waiting for the second gen ECU plus to come out which is why I dont have any way to log or adjust timing. The car was running 19 psi on a GT35R, 750cc injectors, fuel pump, pressure regulator, cams, intake manifold, full exhaust, intake, etc...

 

Come on, someone should be able to provide some help right?

 

can't add much but i thought that you definitely didn't want to have the
o2 sensor after the cat because it will throw off your readings. you could
throw in a test pipe just to tune though instead of rewelding a new bung

 

I dont have a cat. It is a straight pipe That was my inuendo of putting quatations around it