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SYSTEM — ENGINE CONTROL system Malfunction SYMPTOM Reference page Feature of symptom, Check point HARD/NO ST AR T/REST AR T (EXCP . HA) ENGINE ST ALL HESIT A TION/SURGING/FLA T SPOT KNOCK/DET ONA TION LACK OF POWER POOR ACCELERA TION HI IDLE LOW IDLE NO ST AR T (with first firing) NO ST AR T (without first firing) HARD T O ST AR T WHEN ENGINE IS COLD HARD T O ST AR T WHEN ENGINE IS HOT A T IDLE DURING DRIVING WHEN DECELERA TING Warranty symptom code AA AB AC AD AE AF ENGINE CONTROL Electronic control fuel injection pump *a, *b 1 1 1 1 1 1 1 1 1 1 1 — *c, *d Mass air flow sensor circuit *a, *c 1 1 1 *b Engine coolant temperature sensor *a, *b 1 1 1 1 *1 Vehicle speed sensor circuit *a, *b 1 1 - 5: The numbers refer to the order of inspection. TROUBLE DIAGNOSIS — GENERAL DESCRIPTION ZD30DDTi Symptom Matrix Chart (Cont’d) EC-58 |