# Fuel pump residual hold pressure (NB2, non-turbo)

Canonical URL: https://miatatorque.com/spec/fuel-pump-hold-pressure-inspection-nb2/

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

Confidence: fsm

More than 343 kPa {3.5 kgf/cm², 50 psi} after 5 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-pump-hold-pressure-inspection-nb2",
  "name": "Fuel pump residual hold pressure (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": "More than 343 kPa {3.5 kgf/cm², 50 psi} after 5 min",
  "procedure": {
    "notes": "Engine stopped; use the complete factory fuel-pressure test setup, PDF pp. 713–716. Operate pump with ignition ON for 10 s, switch to LOCK, then measure after 5 min. Replace pump if hold pressure is outside specification."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-2003",
      "page": "Fuel Pump (FP) Pressure Inspection (PDF p. 716)",
      "as_printed": "FP hold pressure\nMore than 343 kPa {3.5 kgf/cm², 50 psi}",
      "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-pump-hold-pressure-inspection-nb2/"
}
```