Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1986 Mazda 626 BaseFACTORY OEM SERVICE PROCEDURE
Cold Start Injector
NOTE:
To avoid damage to injector, perform this test within the shortest possible time.
- Disconnect negative battery cable, and cold start injector connector. Remove cold start injector (with fuel supply connected) and place over glass container.
- Connect battery power to injector terminals. Fuel should spray from injector. If not, replace cold start injector.
- Disconnect test harness from cold start injector and check for fuel leakage from injector. Maximum leakage is less than one drop of fuel per minute. Resistance between cold start injector terminals should be 3-5 ohms.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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