Finishing up my project and I am at the finish line. I got the car started using a map that was already on the ecu (previous owner), it ran before when it was a factory s5 t2 setup. Problem is that I get it turned on which takes a second (like a lot of cranks)... But after that it idles alright but then sounds like it is backfiring every few seconds and then when I push the throttle it backfires even more like gunshots. LOL Can someone take a looks at the pictures and see if it all checks out, I looked at base maps in the sticky and it looks similar.

I'm just listing everything no idea what is or isn't relevant but if it helps

-LT9C with x4
-S4 T2 (small street port)
-S5 T2 Upper/Lower Intake manifold
-S5 T2 TB assembly (unmodified)
-No emission stuff
-Factory coils
-FMIC with 3" piping
-Gilmer Belt drive (I used the old pulley to time the car and then marked this belt drive to match the old timing marks)
-Holset hx40w turbo
-Tial MVS wastegate (1 bar)
-factory 550cc injectors (have a set of 1600cc for secondary just don't want to put it as the old tune had it for factory)
-Using the factory TPS.
-Factory S4 T2 fuel pump (I have a Walbro 255 ready to go in but yeah the ecu was set for factory)
-also I have the fuel pump hooked up from the microtech I followed the diagram(before it was hooked up through the factory car harness)
-Koyo Radiator
-Mercury Villager E Fan (hooked up via relay to turn on with the microtech)

side note: ignore the gauges in the software pics. I didn't have the car running when I was taking screenshots just had the ignition on so I could access the ecu and I have a separate Wideband not using the factory o2 sensor.

 

Looks like you need to calibrate the tps and connect the air temp sensor up.
Check fuel pressure and timing.

 

My timing was spot on. I put the factory pulley on and manually turned it and set the cas. Then I put the belt drive on afterwards. My air temp sensor is connected, anything else I need to do with it? I recalibrated the tps and it is correct now.

 

Is air temp -21C correct?
Whats idle AFR above 82C water temp?

 

To me it sounds like a CAS issue - perhaps loose/broken wires.