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2001 maxima wont stay on ... need help


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floresbr
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Feb 20, 2012, 12:29 AM

Post #1 of 2 (897 views)
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my 2001 Nissan maxima stopped running a few months ago , it starts fine but then immedatly dies out and shuts downs. if i try to give it some gas it dies out even faster. i ran a diagnostic but it was only after the battery died and it whipped any codes it might of had... i replaced the fuel pump with no change to my problem . im looking for any help to point me in the right direction i cant really afforded to play the guess game and start buying different parts . but i really need this car up and running again . thanks


Hammer Time
Ultimate Carjunky / Moderator
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Feb 20, 2012, 6:02 AM

Post #2 of 2 (858 views)
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Re: 2001 maxima wont stay on ... need help [In reply to] Sign In

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.



Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.


2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.


3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.




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