I need help tunning for light load, since the engine is not reving good enough yet. There is something that when pressing gas pedal very slowly it revs pretty good, but when pressing the pedal faster it almosty stalls.

My set up is S4 TII with all factory sensors except for 3 Bar Map.

I've been reading the manual and will start messing with the TPS and Map Filters, as well as the throttle pump settings.

If anyone has already gone through the same that can point me in the right direction it will be greatly appreciated.

 

The point you are at now is where i got my setup to till i was able to limp it to the tuner. everytime i give it gas underload ti fell on its face. i got it reving in park but.

You need a tuner or someone (could be you if you learn what to do) to manipulate the fuel and timing maps to get it pretty much driveable.

 

Hybrid,

Thanks for your response.

You were right and that's exactly what I did. I took the car to a certified tuner, and I saw what he did.

There were a few things that were not helping such as a BAD alternator and fuel maps.

The car has been tuned and it is drivable with lots of power, but I have to take it easy until the break-in has been completed.

I assumed that in a couple of weeks I will be taking it to a Dyno for final set up.

I will post the results as soon as available. Expected RWHP 425-475.

Set up:

Streetport, T72 /81P, 750/1600 Injectors, FMIC, 3" Exhaust, 3" DUAL Pipes, BOSCH 044 in-line F/P.

 

throttle pump