Engine Controls - Basic Testing - 2.0L 4-CYL: Summary

If no faults found while performing BASIC DIAG. PROCEDURES, proceed to TESTS W/CODES - 2.0L 4-CYL article. If no hard codes found in self-diagnostics, see TESTS W/O CODES - 2.0L 4-CYL article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.