Showing specs for all NA & NB Miatas

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

More than 50 psi (343 kPa; 3.5 kgf/cm²) after 5 minMore than 343 kPa {3.5 kgf/cm², 50 psi} after 5 min

Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

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.

Applies to
  • NB 2001–2005 (BP-Z3) — Other years inferred from 2003 factory evidence.
  • Verified in: 2003 Mazda MX-5 Miata Workshop Manual (electronic manual capture)

Sources (1)

View 1 source citations
  • 2003 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page Fuel Pump (FP) Pressure Inspection (PDF p. 716) · Printed value & notes
    Page Fuel Pump (FP) Pressure Inspection (PDF p. 716)
    Printed: “FP hold pressure More than 343 kPa {3.5 kgf/cm², 50 psi}”