Lack Of Power, Sluggish Or Spongy: Sensor/System
- Inspect for excessive spark retard activity using a scan tool. See KNOCK SENSOR under INPUT DEVICES in THEORY & OPERATION - 3.8L BONNEVILLE, GRAND PRIX, IMPALA, LESABRE, MONTE CARLO, PARK AVENUE & REGAL article for Knock Sensor (KS) system description.
- Inspect the Exhaust Gas Recirculation (EGR) system for proper operation. See EXHAUST GAS RECIRCULATION for EGR system description.
- Inspect for a restricted air intake system. See AIR INDUCTION SYSTEMS in THEORY & OPERATION - 3.8L BONNEVILLE, GRAND PRIX, IMPALA, LESABRE, MONTE CARLO, PARK AVENUE & REGAL article for air intake system description.