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.
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HOMESERVICE MANUALSMAZDA1988626 LX, 4D SEDAN, 2.2, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISFUEL PUMP - ELECTRICTESTINGVOLUME TESTINJECTOR (ALL OTHERS)
1988 Mazda 626 LX, 4D Sedan, 2.2, Automatic
Injector (All Others)
1988 Mazda 626 LX, 4D Sedan, 2.2, AutomaticSECTION Injector (All Others)
- Connect a vinyl hose to fuel injector and place hose into container. Connect Injector Checker (49-9200-040) on RX7, 323 and (49-B092-953) on 626.
- Using a jumper wire, connect terminals of fuel pump check connector. Turn ignition on for 15 seconds, measure injection volume. Volume should be 3.8-4.0 ounces (111-118 cc) on RX7, 1.1-1.4 ounces (32-41 cc) on 323, and 1.3-1.8 ounces (38-53 cc) on 626.
RENDER: 1.0x
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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.