Mazda MX-5 Throttle Body Repair – LFE2 13 640 A / K4238 Fits 1.8L Models (1998–2005)

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Mazda MX-5 Throttle Body Repair – LFE2 13 640 A / K4238

Fits 1.8L Models (1998–2005)

This is a repair service for the electronic throttle body used in Mazda MX-5 (Miata) vehicles equipped with the 1.8L engine, manufactured between 1998 and 2005. These units commonly suffer from throttle response issues, idle control faults, or sticking valves.


Common Symptoms:

  • Unstable or high idle

  • No throttle response or limp mode

  • Check Engine Light (CEL) with throttle-related fault codes

  • Sticky or unresponsive throttle plate

What We Do:

  • Disassembly and internal inspection of the throttle mechanism

  • Cleaning of throttle valve and position sensor area

  • Repair or replacement of faulty sensors, motor drivers, or tracks

  • Bench testing for smooth and responsive operation


Compatible With:

  • Vehicle: Mazda MX-5 / Miata

  • Engine: 1.8L petrol

  • Years: 1998–2005

OEM / Reference Part Numbers:

  • LFE2 13 640 A

  • K4238

  • 0811003463J19

  • 0811003463J16

Turnaround Time: 2–4 business days
Warranty: 12 months on repaired components

💡 Restore factory throttle response and drivability by repairing your original throttle body — no reprogramming required.



Questions about this repair?