TSRM/MK4 Supra/Repair Manual
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TGE/Troubleshooting 2JZ-GE, page 21

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Troubleshooting 2JZ-GE — MK4 Supra Troubleshooting 2JZ-GE, page 21
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Page text (OCR transcript)
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.