Is it dangerous to keep driving with this wiring faulty?

Not immediately dangerous, but continuing to drive with a persistent misfire can send unburnt fuel into the catalytic converter, causing expensive damage — repair promptly.

Can this wiring be repaired instead of replaced?

A specialist auto electrician can often repair a localised connector or wire fault without replacing the entire harness.

What is the wiring made of?

Copper conductors in heat-resistant insulation, given the proximity to the engine.

How do I check whether Fuel injector wires MAZDA 3 2007 fits my vehicle?

Compare OEM reference 5S6T14A390GB, the listed vehicle (MAZDA 3 2003-2009), connectors, mounting points and the photographs for this exact item.

What is the condition of Fuel injector wires MAZDA 3 2007?

Listed condition: Used. Current availability: 1 in stock - ready to ship. Review the item photographs and any stated defects as well.

How is Fuel injector wires MAZDA 3 2007 delivered and returned?

Available delivery methods, timing and price for your country are shown in the cart. Review the applicable 14-day return terms before ordering.

Fuel injector wires MAZDA 3 2007

Name: Fuel injector wires MAZDA 3 2007
Brand: MAZDA
SKU: 5S6T14A390GB
Price: 22.50 EUR
Availability: InStock

OEM: 5S6T14A390GB

Disassembled car photo

Engine running

Tested before shipping
Guaranteed quality
Fast delivery 3–7 days
14-day returns

Details for this exact part

Code: 5S6T14A390GB
OEM: 5S6T14A390GB
Condition: Used
Availability: 1 in stock - ready to ship
Make, model: MAZDA 3 2003-2009
Year: 2006
Engine: 1.6 Petrol 80KW
VIN: JMZBK14Y271585178

What is this part and why does it matter?

This wiring carries the precise electrical signals from the ECU to each fuel injector, controlling exact injection timing and duration.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

Rough idle or misfire on a specific cylinder
Poor fuel economy
Check Engine light with an injector-related fault code

Installation information

Routes from the ECU to each injector location — check for secure, correctly seated connectors after installation.

Frequently asked questions

Both a bad wiring connection and a failed injector can produce the same symptom (a misfire on a specific cylinder), so a mechanic will typically test the wiring’s continuity and connection before condemning the injector itself.

Donor vehicle description

VIN: JMZBK14Y271585178
Make, model: MAZDA 3
Year: 2006
Engine: 1.6 Petrol 80KW
Transmission: Manual 5-speed
Drive: Front
Colour: 32C PHANTOM BLUE MICA

206 parts from this car

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