turbo tips, 3sgte 101 Options

[Malhar95]

i just purchased a celica with a st185 swap from decker here on the forums. reading up everything now.
any suggestions or tips for what not to-do's or anyhting other helpful links would be appreciated.

so for what i know, 2nd gen 3sgte which reads about 12-13 on the boost gauge. driving it back to houston from kansas city the air/fuel ratio was jumping crazy between lean and rich the whole time. not sure if defected meter or something else.
also realized that the top mount intercooler isnt a good idea but im still reading and researching on that. And also trying to find how to get a BOV on the setup(i want that "patishh" sound lol)
keep in mind that this will be my first turboed/swapped car, so im pretty much the dumbest of dumbest...dont really know much. any tips and suggestions work.

[pitcelica]

Closed loop is when the ECU adjust the fueling based on the O2 sensor feedback. This happen at idle and cruising state on a warmed up engine. At higher load/RPM, the engine is in open loop because it's not using the O2 sensor feedback for his fueling calculation. He's basing the fueling on the internal fuel map (RPM vs load).

Closed loop is a good thing. As lagos pointed out, boucing AFR between 14 and 15 is totally normal at idle and cruising. When boosting or at high RPM you should see around 11-12 AFR on your gauge (assuming you have a wideband AFR gauge).

Sam