EG–514 ENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING MATRIX CHART OF PROBLEM SYMPTOMS When the malfunction code is not confirmed in the diagnostic trouble code check and the problem still can not be confirmed in the basic inspection, proceed to this matrix chart and troubleshoot according to the numbered order given below. See page EG-544 EG-559 EG-564 EG-571 EG-574 EG-576 EG-581 EG-583 EG-586 EG-568 EG-595 EG-589 AC-62 ST-3 IG-21 IG-22 IG-23 EG-9 AT2-101 BE-123 IN-35 Suspect area Mass air flow meter circuit Starter signal circuit EGR system Switch condition signal circuit Park/neutral position switch circuit ECM power source circuit Back up power source circuit Injector circuit IAC valve circuit Fuel pump control circuit VSV circuit for fuel Pressure Control Turbo control circuit A/C signal circuit (Compressor circuit) Starter and Starter relay Ignition signal circuit (Spark test) Spark plug Ignition coil Compression A/T faulty Theft deterrent ECU Engine control module (ECM) Symptom Does not start Engine does not crank 2 1 3 No initial combustion 1 5 3 2 4 No complete combustion 5 1 4 3 2 Difficult to start Engine cranks normally 1 7 2 3 5 4 6 Cold engine 1 4 2 3 6 5 Hot engine 1 5 2 4 3 7 6 Poor Idling Incorrect first idle 1 2 High engine idle speed 1 5 4 6 2 3 Low engine idle speed 7 3 4 8 6 1 5 2 Rough idling 3 5 1 11 4 2 8 6 10 9 7 Hunting 3 1 4 2 5 Poor Driveability Hesitation/Poor acceleration 2 1 3 4 8 5 7 6 9 Muffler explosion (after fire) 1 4 3 2 Surging 1 4 2 3 Engine Stall Soon after starting 2 3 1 After accelerator pedal depressed 2 1 After accelerator pedal released 1 2 3 During A/C operation 1 2 3 When shifting N to D 1 2