Idle-up Speed Inspection

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Perform ENGINE TUNE-UP PREPARATION , and IDLE SPEED ADJUSTMENT .
Verify "RPM" PID is selected.
Press "START".
Verify that the idle speed is normal.
Verify that the idle-up speed is within the specification.
- If not as specified under all load conditions, inspect the IAC valve.
- If not as specified under some load conditions, inspect related input switches, harnesses and connectors.

IDLE-UP SPEED SPECIFICATION

Load condition

Idle-up speed (RPM) ⁽¹⁾

BP WITH TC

N, P position

D range

E/L ON⁽²⁾

750-850 (800 +/- 50)

700-800 (750 +/- 50)

800-900 (850 +/- 50)

P/S ON⁽³⁾

750-850 (800 +/- 50)

A/C ON⁽⁴⁾

950-1050 (1000 +/- 50)

⁽¹⁾	Excludes temporary idle speed drop just after the electrical loads (E/L) are turned on.

⁽²⁾	Headlight is on, fan switch (above 1st), cooling fan are operating, rear window defroster is on.

⁽³⁾	Steering wheel is fully turned.

⁽⁴⁾	A/C switch and fan switch are on.