Question about 2007 Mazda B2300
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Posted on Jan 02, 2017
you may need to run a wire from a keyed ignition source that has power while cranking and running to the fuel pump relay and bypass the pcm to test wether it will run, if it runs put a more permanent wire in place.Not too sure what tests youve done but it seems that fuel is what your focusing on so a quick test is too spray engine start up the intake tube to see if the engine trys to run if it does it eliminates a lot of other potential reasons for a no start condition.Also try squeezing the fuel return line to see if the added pressure will try to make engine run.Could be time to replace fuel pump etc anyway let me know how it goes good luck with it
Posted on Dec 12, 2008
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
pumps are rare to fail on these. the quick easy thing to check is the inertia switch. if in a wreck or jarred hard, this switch shuts down the fuel pump to stop a fire and must be manually reset. it is located behind the lower kick panel on the passenger side of cab interior. its a little black switch with a red button facing upward. if tripped the button is up. push back down and it will re-engauge. try to start may have to crank alittle to prime. this procedure is in your owners manual too if need be.
Posted on Sep 02, 2009
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