Miata, Protege & Protege5

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Mazda Tribute, 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, and 2003 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Connect scan tool to DLC-2 located under left side of instrument panel:
- Miata - Above fuse block, behind fuse block cover.
- Protege and Protege5 - Left of steering column.
See Figure . Connect fused jumper wire between terminals TEN and GND at DLC-1 in engine compartment. See Figure .
Start engine and allow it to idle. Turn off all electrical loads. Using NGS scan tool, select PID/DATA MONITOR AND RECORD and monitor RPM. If idle speed is not within specification, rotate Air Adjusting Screw (AAS) on throttle body. See Fig 1 -Fig 2 . See IDLE SPEED SPECIFICATIONS table.

IDLE SPEED SPECIFICATIONS

Application

Specification

B2300

800-950

B3000

A/T

880-920

M/T

760-800

B4000

A/T

760-830

M/T

760-800

Miata

⁽¹⁾ 750-850

Mazda6

2.3L

ATX

650-750

MTX

600-700

3.0L

700-800

MPV

700-800

Protege & Protege5

⁽¹⁾ 650-750

Tribute

2.0L

800-900

3.0L

730-750

⁽¹⁾	With fused jumper wire connected between TEN and GND terminals at DLC-1.

Fig 1: Rotating Air Adjusting Screw (Miata)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Rotating Air Adjusting Screw (Protege & Protege5)

Courtesy of MAZDA MOTORS CORP.