Question about 1983 Mazda B-Series
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Posted on Jan 02, 2017
Hello, I am going to make a few assumptions here. The vehicle has an electric fuel pump and you replaced it. The vehicle has fuel injection. The engine is actually cranking, just not starting, when you say "car still won't crank". You are getting fire to the spark plugs at the plug ends. You checked the fuel pump for power at the pump. No power, then you back traced the wire to the fuse block and checked the fuse to see if it was blown. If the fuse is good back trace the power to the ignition switch and/or ECM for power. You have power at the pump, check the ground and make sure it is connected properly. Will the pump run when someone turns the key on? Pump runs, check fuel manifold for pressure. No pressure, check the fuel filter for blockage, or replace it. Fuel pump doesn't run, new replacement pump is defective. There is usually some type of control module for the fuel pump on fuel injected vehicles. Good Luck, RAC
Posted on Apr 18, 2009
pull one plug wire insert screw driver intothe spark plug boot getthe screw driver 1/4 inch away from a good ground and where it won't move. crank engine over if yo see a blue spark then you have another problem if it does nor spark yo have a bad coil or contact set.
Posted on Oct 07, 2009
if you have spark at the plugs you need to check fuel pressure at reed valve on fuel rail,you will need at least 55psi to fire injectors,
Posted on Dec 27, 2009
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