200SX L4-1998cc 2.0L DOHC MFI (SR20DE) (1995)
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1) Start engine and warm it up sufficiently.
2) Turn ignition switch "OFF" and wait for at least 3 seconds.
3) Start engine again.
4) Check the voltage between Engine Control Module (ECM) terminal (103) and ground at idle speed.
Voltage: 0.06-0.11 volts
5) Check that the voltage changes to battery voltage and returns to 0.06-0.11 volts when the engine speed increases to about 3,600 rpm.
