Question about Mazda MX-3
Posted by Anonymous on
Why did you replace fuel pump? Did you buy a dealer pump or cheap aftermarket unit? Just because it is new does not mean it is good. Have you run pressure test?
Posted on May 05, 2015
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Posted on Jan 02, 2017
SOURCE: Mazda Lantis will not start
What you can do is disconnect the fuel filter and have an assistant watch under the vehicle while you turn the ignition switch (but with out actually turning the engine on. If the Fuel pump is an electrical fuel pump it will spit out fuel for about 3 to 5 seconds.
If nothing happens then a more extensive method to checking the fuel pump
Ok if you could find the fuel pump relay.
It will have either 4 pins or 5pins
This is a trick to activate the fuel pump with out the engine actually running and for longer that 3-5 seconds.
the 4 pins are numbers 85 86 30 and 87 (87a)
If you can remove the relay and memorize where the pins go. Then acquire a bobby pin or paper clip and cross the terminals 30 and 87 (87a) and if the fuel pump activates then it functions but remember to have the key in the ignition with it to the run postion but the engine off. If this works then the relay could be bad, Test Terminals 30 and 85 for resistance.
Reply if you have questions
Posted on Jul 13, 2009
try to clean out the mass air flow sensor and check to see if you need to replace the sparkplug wires and if you can also check on any engine codes
Posted on May 22, 2010
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