Poor Acceleration With Cold Engine Or During Warm-Up
- Check fuel pump.
- Check auxiliary air intake system.
- Check oxygen sensor control circuit.
- Check fuel system after-start, acceleration enrichment and warm-up circuits.
- Check airflow sensor lever adjustment and control plunger.
- Check throttle potentiometer.
- Check fuel system differential and residual pressures.
- Check injector fuel pressure and volume.
- Check idle switch.
- Check engine coolant temperature sensor.
- Check throttle body basic adjustment.
- Check exhaust system.
- Check ignition timing, spark plugs, distributor, secondary ignition wiring and coil.