i will have to check which sensor im running off, im pretty sure its Sensor 1 bank 1 wherever that one is situtated????
my AFR gauge reads a constant 14.7 (just under the 15 mark) even when im on or off boost. Ive noticed very little change in the gauges movement since ive installed it months ago. Perhaps ive got the wrong sensor.

Like i said before, on my ecu wiring, it lists a few wires for the sensors and i dont know where they are located. Bank 1 sensor 1, Bank 2 sensor 1

 

Yeah, it shouldn't be constant 14.7 from what I've been reading on my setup. That ECU of ours likes to tweak the AFR constantly, and does quite a good job of hitting high horse power AFR at WOT. Toyco did a good job with the open loop maps.

 

cool, i know frm using a digital readout or an autometer LED AFR gauge, it tends to bounce back a forth a lot, my gauge now is a regualr needle gauge by defi, so i presume rather than bounce back and forth, as it wouldnt keep up with the constant ecu changes, it just settle for a average, which looks to be stoich

 

Yeah that could definitely be it. All the digital narrowbands I've seen can be quite annoying, and much more so on the tC as our ECU is always working at that AFR.

From my stock datalogs, it does a pretty decent job at staying Stoich at idle and up to 1/2 throttle. Takes a split second or so (I have my resolution at 1/12th second) to recover from quick throtle from idle and can tick lean for a moment as the engine bogs from take off. Nothing big on a piston engine,, it's probably just valve overlap, just something to keep in mind if you run your tune too lean at low rpms, I still have yet to notice any knock from my tuning on this car.