Question about 1994 Mazda 323

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Mazda Lantis will not start

Car was dying when going up hills, thought about electrical problem, changed dizzy cap, plugs etc... It's getting spark.
Thought it maybe fuel filter, replaced that, old filter was full of black fuel.
Could somebody tell me how to check the fuel pump please?

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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

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