# Fuel injector leakage limit (NB2, non-turbo)

Canonical URL: https://miatatorque.com/spec/fuel-injector-leakage-limit-nb2/

Applicability: NB 2001–2005 (BP-Z3) — Other years inferred from 2003 factory evidence.

Confidence: fsm

Less than 1 drop in 2 min

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": "fuel-injector-leakage-limit-nb2",
  "name": "Fuel injector leakage limit (NB2, non-turbo)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        2001,
        2005
      ],
      "engines": [
        "BP-Z3"
      ],
      "note": "Other years inferred from 2003 factory evidence."
    }
  ],
  "kind": "non-torque",
  "value_text": "Less than 1 drop in 2 min",
  "procedure": {
    "notes": "Engine stopped. Complete factory fuel-pressure release and test setup (PDF pp. 688, 701–702). Secure injectors to distributor, run pump using only the specified DLC F/P and body-ground connections, and tilt injectors approximately 60 degrees. Replace injector if leakage exceeds specification."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-2003",
      "page": "Fuel Injector Inspection — Fuel Leakage and Volume Test (PDF p. 702)",
      "as_printed": "Fuel leakage\nLess than 1 drop/2 min",
      "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."
      }
    }
  ],
  "jobs": [],
  "system": "fuel-intake",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/fuel-injector-leakage-limit-nb2/"
}
```