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.
1989 Mazda 626 BaseFACTORY OEM SERVICE PROCEDURE
Fuel Pump: Notes
NOTE:
Fuel pump performance is a measurement of fuel pressure and volume availability, not regulated fuel pressure.
FUEL PUMP PERFORMANCE
| Application | Pressure psi (kg/cm2 ) | Min. Vol. in 30 sec. Pts. (L) | |||||
|---|---|---|---|---|---|---|---|
| B2200 | |||||||
| Electric | 2.8-3.6 (.20-.25) | 1.1 (.53) | |||||
| Mechanical | 3.7-4.7 (.26-.33) | .9(.43) | |||||
| B2600i, MX-6 (1), 323 (2), 626 (1) | 64-85 (4.5-6.0) | 1.1 (.66) | |||||
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REGULATED FUEL PRESSURE
| Application | At Idle w/Vacuum psi (kg/cm2 ) | At Idle w/o Vacuum psi (kg/cm2 ) |
|---|---|---|
| B2600i | 31-38 (2.2-2.7) | 38-46 (2.7-3.2) |
| MX-6 & 626 | 27-33 (1.9-2.3) | 34-40 (2.4-2.8) |
| 323 | 26-31 (1.8-2.2) | 34-40 (2.4-2.8) |
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.