while pressing the brake pedal it wont accelerate

[nycblazer]

Hello everyone, been looking around and had no luck trying to figure out why my LS3 swapped S10 Blazer won't accelerate when I'm pressing the brake pedal, if I don't press the brake pedal it accelerates. It really sucks because my blazer is 6 speed manual and when I need to take off on a hill its a beach. It'll roll back til the gas pedal activates again after letting go the brake pedal. What can it be? I'm burning the clutch. You know how usually you feather the gas pedal a little while pressing the brake on a hill but I can't do that. If I'm pressing on the brake the gas pedal does not respond. SMH
1999 S10 Blazer
6.2L LS3
T-56
TBSS ECM
Current Performance Engine harness
DBW.

[SultanHassanMasTuning]

post your tune

[nycblazer]

1999 S10 Blazer TBSS tune 6 10 19.hpt heres my current tune.

[nycblazer]

post your tune

1999 S10 Blazer TBSS tune 6 10 19.hpt

[nycblazer]

Trouble Codes:
P0122 - Throttle/Pedal Position Sensor A Circuit Low (Pending, Current)
P0223 - Throttle/Pedal Position Sensor/Switch B Circuit High (Pending, Current)
P0315 - Crankshaft Position System Variation Not Learned (Pending, Current)
P0449 - Evaporative Emission System Vent Control Circuit Intermittent (Pending, Current)
P0606 - ECM / PCM Processor (Pending, Current)
P2122 (Pending, Current)
P2127 (Pending, Current)
P0230 - Fuel Pump Primary Circuit (Pending)
P0443 - Evaporative Emission System Purge Control Valve Circuit (Pending)
P0452 - Evaporative Emission System Pressure Sensor/Switch Low (Pending)
P0463 - Fuel Level Sensor A Circuit High (Pending)
Controller Type ID By OS: 5040

[mbray01]

That p0606 is usually from modifying the throttle body settings too aggressively. Also looks like you have throttle body/accelerator pedal issues. Im assuming a swapped vehicle. Double check all connections.

[SultanHassanMasTuning]

nothing wrong in the tune, but as you just posted could be related to all those error for the throttle actuator