# Idle-up speed — automatic in Drive (NB2 non-turbo)

Canonical URL: https://miatatorque.com/spec/idle-up-at-drive-nb2/

Applicability: NB 2001–2005 (BP-Z3, 4AT) — Other years inferred within NB2 non-turbo family from actual 2003/2005 factory evidence.

Confidence: fsm

700–800 rpm (750 ± 50 rpm)

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "idle-up-at-drive-nb2",
  "name": "Idle-up speed — automatic in Drive (NB2 non-turbo)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        2001,
        2005
      ],
      "engines": [
        "BP-Z3"
      ],
      "trans": [
        "4AT"
      ],
      "note": "Other years inferred within NB2 non-turbo family from actual 2003/2005 factory evidence."
    }
  ],
  "kind": "non-torque",
  "value_text": "700–800 rpm (750 ± 50 rpm)",
  "procedure": {
    "notes": "Warm engine to normal operating temperature with fully charged battery. Begin with MT in Neutral or AT in P, electrical loads off, and cooling fan stopped. Read RPM PID using factory-compatible diagnostic equipment. Read after the temporary speed drop when loads are first switched on. Check electrical loads (headlights, blower above first position, cooling fan and rear defroster on), power steering (fully turned), and A/C (A/C and blower on) separately. Use D for this record; follow the complete factory procedure for stationary Drive-range inspection."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-2003",
      "page": "Engine Tune-Up, Idle-up Speed Inspection (PDF p. 570)",
      "as_printed": "AT\nD range\n700—800 (750 ± 50)",
      "verified_years": [
        2003,
        2003
      ],
      "document": {
        "id": "fsm-2003",
        "tier": 1,
        "title": "2003 Mazda MX-5 Miata Workshop Manual (electronic manual capture)",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2003,
              2003
            ],
            "engines": [
              "BP-Z3"
            ]
          }
        ],
        "note": "Normally aspirated BP procedures audited; turbo procedures are covered separately."
      }
    },
    {
      "source": "fsm-2005",
      "page": "Engine Tune-Up, Idle-up Speed Inspection (PDF p. 651)",
      "as_printed": "AT\nD range\n700—800 (750 ± 50)",
      "verified_years": [
        2005,
        2005
      ],
      "document": {
        "id": "fsm-2005",
        "tier": 1,
        "title": "2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2005,
              2005
            ],
            "engines": [
              "BP-Z3"
            ]
          },
          {
            "gen": "NB",
            "years": [
              2005,
              2005
            ],
            "engines": [
              "BP-Z3-TURBO"
            ],
            "trans": [
              "6MT"
            ]
          }
        ]
      }
    }
  ],
  "jobs": [],
  "system": "fuel-intake",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/idle-up-at-drive-nb2/"
}
```