Question about 1996 Mazda MX-6

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1996 mazda mx6 ls cranks but won't start

Fuel pump doesn't run when ignition is turned on. jumper at diagnostic block pump runs. changed fuel filter-cap and rotar and still wont start. according to wiring diagram pump relay gets its power from pcm. fuses are all ok

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  • darrell swanson Dec 13, 2008

    to angelo6,

    jumpered fuel pump at diagnostic block with ignition on tryed cranking with jumper in block and wouldn't start. anymore suggestions. i also agree it probably computer problem but trying everything else first. going to put fuel pressure gauge on it today possible. thanks for your help

  • Angelo Attard
    Angelo Attard May 11, 2010

    sounds like computer problem engine needs to be cranking over for pump to work check pump for power with some one cranking the engine over



    if there is no power when cranking if u know how to jump relay will car start

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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

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