Emission Control Systems

IGNITION TIMING

Basic
Ignition Timing Connector grounded 5°+/-2° BTDC @ Curb Idle
Actual
Ignition Timing Connector ungrounded 8° BTDC @ Curb Idle
The ECU may further advance the actual ignition timing at high altitudes.

RESISTANCE VALUES

EGR Control Solenoid Valve 36-44 ohms
EGR Temperature Sensor
At 50°C (122°F) 60-83 K ohms
At 100°C (212°F) 11-14 K ohms
Oxygen Sensor
Below 20°C (68°F) Approx. 15 ohms
Above 400°C (752°F) 30 ohms or more
Purge Control Solenoid Valve 36-44 ohms