Intake & Fuel System
4 guides in this section.
Air filter replacement
Replace the Mazda MX-5 NB (1998-2005) engine air filter in the stock airbox, with notes for reusable/oiled panel filters and MAF-sensor risk control.
- Difficulty:
- Beginner
- Time:
- 15-30 min
Fuel filter replacement
Replace the Mazda MX-5 NB (1998-2005) fuel filter with emphasis on safe depressurization, NB quick-connect handling, and leak-proof verification.
- Difficulty:
- Intermediate
- Time:
- 60-120 min
Throttle body cleaning
Clean the Mazda MX-5 NB throttle body and throttle plate deposits to improve idle stability and throttle response, with sensor/solvent safety controls.
- Difficulty:
- Intermediate
- Time:
- 45-90 min
Spark plug inspection (ensure proper firing)
Inspect Mazda MX-5 NB spark plugs for wear, fouling, and heat signs to confirm proper firing and decide whether cleaning, re-gapping, or replacement is needed.
- Difficulty:
- Intermediate
- Time:
- 30-60 min