TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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TGE/Troubleshooting 2JZ-GE21 / 105
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ENGINE — 2JZ-GE ENGINE TROUBLESHOOTING — MK4 Supra Troubleshooting 2JZ-GE, page 21
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EG–401 ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING 5 Check idle speed. IG⊖ Tachometer DLC1 P11291 P (1) Shift transmission into "N" position. (2) Warm up engine to normal operating tempera– ture. (3) Switch OFF all accessories. (4) Switch OFF air conditioning. (5) Connect tachometer test probe to terminal IG⊖ of data link connector 1. C Check idle speed. OK Idle speed: 700 ± 50 rpm Caution • NEVER allow tachometer test probe to touch ground as it could result in damage to igniter and/or ignition coil. • As some tachometers are not compatible with this ignition system, we recommend that you confirm compatibility of your unit become use. OK NG Proceed to matrix chart of problem symptoms on page EG–408. 6 Check ignition timing. SST TE1 E1 DLC1 P11288 PO2530 P (1) Shift transmission into "N" position. (2) Warm up engine to normal operating tempera– ture. (3) Keep the engine speed at idle. (4) Using SST, connect terminals TE1 and E1 of data link connector 1. SST 09843–18020 (5) Connect a timing light probe to No.1 high–ten– sion cord. C Check ignitiion timing. OK Ignition timing: 10 ± 2° BTDC @ idle OK NG Proceed to page EG–18 and continue to trouble– shoot. Proceed to matrix chart of problem symptoms on page EG–408.