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Home >> Lexus >> 1992 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Exhaust Gas Recirculation >> Testing and Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Exhaust Gas Recirculation: Testing and Inspection





- Using SST 09843-18020 or equivalent, connect terminals TE1 and E1 of the DLC1.





- Keep the engine at 3,500 rpm.
- Set the transmission shift lever to the "N" position





- Remove the SST from the DLC1.





- Check whether the engine rpm increases 100 - 300 rpm under the following conditions:

Engine coolant temp.
Below 53°C (127°F) No increase
Above 55°C (131°F) Increases