Poor Response On Acceleration

Check for proper CO setting (if adjustable) on mass airflow meter and for broken filament. Check mass airflow meter resistance.
Check induction system. Check for leaks downstream of throttle valve. Inspect duct between mass airflow meter and throttle body.
On 900 Series vehicles, check idle speed and pulse ratio.
Check injector operation and opening duration. Check injectors for leaks.
Ensure fuel pump is okay. Check fuel pressure and pressure regulator. Check for leaks or restrictions.
Ensure electrical harness, connectors and wires are not broken or loose. Check all input signals to ECU.
Check temperature sensor.
Check oxygen sensor.