1g Fuel trims really high

[skibumexicano]

Hey everyone...I've got a 92 GSX and have the basic mods. However i dont have an AFC. For awhile now i've been having a problem with my fuel-trims. All my fuel trims are at 139.8% according to MMCD. When i reset my computer, they all go back to 100% and after about 2 weeks, they are back at 139.8%. I think it's either a bad 02 sensor or because i hacked my MAS! Either way guys...Any input would be greatly apprecaited...Thanks..Dan

 

[92awddsm]

How much did you hack the mas? All you can do is pull the lower honeycomb without fuel control and even then, trims will be a little over 100% At 139%, that is maxed. If you only removed the lower hc, you probably have a vac leak somewhere. Do a boost leak test to find it.

 

[skibumexicano]

When i hacked it, i removed the lower HC..After i hacked the MAS it all went to hell! I'm just running out of ideas...I need an AFC to correct it!

 

[skibumexicano]

Well...looks like I've stumbled across another 1g mas..I'm gonna put that lower HC into my MAS and see what happens..I replaced my 02 sensor and nothing changed!