Test Dr-21A - Inspection Of Mechanical Systems & Components
WARNING: This page is about a different car, the 1994 Plymouth Laser and 1994 Eagle Talon. However, it is still accessible from the selected car via links, so may be relevant.
ECU-controlled systems are functioning properly. Driveability problem is caused by mechanical system malfunction. Check if any TECHNICAL SERVICE BULLETINS (TSBs) apply to driveability problem. Check following areas for problem:
- Check ignition timing.
- Check engine vacuum.
- Check engine compression.
- Check valve timing.
- Check for exhaust system restriction.
- Check torque converter stall speed.
- Check for fuel contamination.
- Check secondary ignition circuit for abnormal scope pattern.