Idle Speed

WARNING: This page is about a different car, the 2005 Hyundai Accent and 2004 Hyundai Accent. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before adjusting, check that the spark plugs, injectors, idle speed control actuator (ISC actuator), compression etc. are normal.

Engine coolant temperature is 80 to 95°C (176 to 205°F).
Lights, electric cooling fan and all accessories are off.
Transaxle is in neutral ("P" or "N" range for A/T vehicles).
Steering wheel is in a straight forward position (Vehicles with power steering).

Install a tachometer to the primary coil side or connect the scan tool to the data link connector.
Start and run the engine at curb idle speed.
Run the engine for more than 5 seconds at an engine speed of 2,000 to 3,000 RPM. Then, run the engine at idle for 2 minutes.
Read the idling RPM.

Idle speed

SOHC: 800 +/- 100 RPM

DOHC: 800 +/- 100 RPM