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EC-526 < SYMPTOM DIAGNOSIS > [VK56VD] ENGINE CONTROL SYSTEM SYMPTOMS 1 - 6: The numbers refer to the order of inspection. (continued on next page) SYSTEM — ENGINE MECHANICAL & OTHER Manifold absolute pressure sensor circuit 3 Battery current sensor 4 5 5 3 Heated oxygen sensor 2 6 6 6 6 5 SYMPTOM Reference HARD/NO S T A R T/RES T A R T (E XCP . HA) E N GINE ST ALL HES IT A TION/SURGING/FLA T SPOT S P ARK KNOC K /DET O NA TI ON LACK OF POWER/POOR ACCELERA TION HIG H IDL E /L OW ID LE ROUGH IDLE/HUNTING ID LING VI BRA T ION S L OW/NO RETU RN T O ID LE OVERHEA T S /W A TER TEMPERA T URE HIG H E XCESSIVE FUEL CON S UMP T ION E XCESSIVE OIL C O NSUMP T ION B A TTER Y DEAD (UNDER CHARGE) Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA SYMPTOM Reference HA R D /N O ST A R T/RE ST A R T (E XCP . HA) E N GI N E ST ALL HE SIT A TION/SURGING/FLA T SPOT S P ARK KNOCK/DET O N A TI ON LACK OF POWER/POOR ACCELERA TION HIG H I D L E /L OW IDL E ROUGH IDLE/HUNTING ID LING VI BRA T ION SLOW/NO RETUR N T O IDLE OVE R HE A T S /W A TER TE MPERA T URE HIG H E X CESSIVE FUEL CONSUMP T ION E XCESSIVE OIL CONSUMP T ION B A TTER Y DEAD (UNDER CHARGE) Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA Fuel Fuel tank 5 5 Fuel piping 5 5 5 5 5 5 Vapor lock — Valve deposit 5 5 5 5 5 5 5 — Poor fuel (Heavy weight gasoline, — |