# Idle-up speed — electrical loads, manual transmission (NB2 non-turbo)

Canonical URL: https://miatatorque.com/spec/idle-up-electrical-load-mt-nb2/

Applicability: NB 2001–2005 (BP-Z3, 5MT/6MT) — Other years inferred within NB2 non-turbo family from actual 2003/2005 factory evidence.

Confidence: fsm

750–850 rpm (800 ± 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-electrical-load-mt-nb2",
  "name": "Idle-up speed — electrical loads, manual transmission (NB2 non-turbo)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        2001,
        2005
      ],
      "engines": [
        "BP-Z3"
      ],
      "trans": [
        "5MT",
        "6MT"
      ],
      "note": "Other years inferred within NB2 non-turbo family from actual 2003/2005 factory evidence."
    }
  ],
  "kind": "non-torque",
  "value_text": "750–850 rpm (800 ± 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. Turn headlights on, blower above first position, cooling fan running and rear defroster on."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-2003",
      "page": "Engine Tune-Up, Idle-up Speed Inspection (PDF p. 570)",
      "as_printed": "E/L ON*\n750—850 (800 ± 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": "E/L ON*\n750—850 (800 ± 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-electrical-load-mt-nb2/"
}
```