Hey guys/girls. I have a 06 LTR and been beating myself up on this issue. I have done about everything and can't get this thing to run right at high RPM's. I have changed the injector and everything. It starts idles and drives but when I stab the throttle it falls on its face. I tested TPS and it volts and ohms out correctly. I've checked valves and those are in tack. I switch to OEM injector and that's not it. I'm at a stand still and about to sell it. Even though I tested TPS could it still be bad? Any suggestions would help. TIA.