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

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Price Exclusive of GST

Our minimum assessment fee is $150 + GST (Excluding Headlights). This just covers the time to check the unit over. If you proceed with the repair, we’ll apply this to the total cost. Our full terms of trade can be found here. Has repair work been attempted by your customer? Link here !

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International Customers:
When sending a unit from overseas, please declare it as “Repair and Return” with a low customs value (around $100 USD) to avoid unnecessary import fees. - All Repair Prices are quoted in NZD

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.