Question about Nissan Maxima

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Hi my 2001 Nissan Maxima VQ30 engine , when I starting the car It's won't start but if I start with press accelerator It will so I release accelerator then It's stop so again I do the same way and keep accelerator press few minute and release accelerator then it's fine every time when the engine cold it's happen same please help me to solve the problem thanks

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  • Nissan Master
  • 6,826 Answers

Try a cts coolant temperature sensor if it is out of range.

Posted on Oct 07, 2010

  • 10 more comments 
  • Anura uk
    Anura uk Oct 14, 2010

    I have check with same other sensor but still the problem same two days before drive to Nissan dealer and diagnose no any fault code, after start with press accelerator if release accelerator fast it stop if release slow it satay at idle after run two minute no any problem running smooth and stay at idle every time start. please help

  • Duane Wong
    Duane Wong Oct 14, 2010

    If it has an iacv, or idle air control valve, maybe the orifice is dirty.

  • Anura uk
    Anura uk Oct 16, 2010

    today i remove and clean throttle body completely dis assemble clean and re assemble and fix it back, now better than before so i adjust throttle sensor all the possible position and adjust Idle adjust screw now it's stay at Idle but Idle rpm is 1100 revs so if I decrees adjuster it's same as before please give me a Idea what I have to do next thanks,

  • Duane Wong
    Duane Wong Oct 16, 2010

    From Autozone.com site:

    Here's what we think may be wrong with your car and what may be causing it. The list goes from the most likely problem to the least likely. Check out our Product and How To pages or the Vehicle Repair Guide for your vehicle (if available) for more information about particular parts.
    Keep in mind, this is a general diagnosis. Your car may not have the parts we list as potential problems. If you're not sure if your car has a particular part, check your owner's manual.
    Feels Like Change
    Symptom: Hard Starting Change
    When: Engine Cold Change
    Where: Under Hood Change

    Priority Action Part Type Cause
    8 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator.
    9 Inspect Carburetor Float Faulty Choke Float.
    10 Inspect Choke Pulloff Faulty Choke Pulloff.
    11 Inspect Choke Thermostat Stuck or Improperly Functioning Choke Thermostat.
    12 Inspect Fuel Injector Cold Start Valve Damaged or Faulty Cold Start Valve.
    13 Inspect Relay - Fuel Pumpat Faulty Fuel Pump Relay.
    13 Inspect PCV Valve Plugged or Damaged PCV Valve.
    13 Inspect Spark Plugs Fouled Spark Plugs.
    14 Inspect Carburetor Choke Not Operating.
    ---
    I went to the troubleshooter at autozone.com and got the above result.
    However, your car doesn't have a carburetor it has fuel injection. So it doesn't make a lot of sense.

    However, I'm not sure what is causing your problem after reading all that.
    ---
    Now, I would like to ask if there are any fault codes? You said, '...two days before drive to Nissan dealer and diagnose no any fault code,'

    I do not know what that means.

  • Duane Wong
    Duane Wong Oct 16, 2010




    Click image to see an enlarged view

    http://repairguide.autozone.com/znetrgs/... engine compartment component locations-3.0L engine" rel="width:950,height:660" index="0" $included="null">

    Fig. Maxima engine compartment component locations-3.0L engine

  • Duane Wong
    Duane Wong Oct 16, 2010

    What do you mean by 'now better than before' and 'so I adjust thorttle sensor all the possible position and adjust idle adjust screw' and 'so if I decrees adjuster it's same as before'

  • Duane Wong
    Duane Wong Oct 16, 2010

    I'm running out of ideas, but maybe you could check fuel pressure when the car is cold vs. when it is hot.

    If the injectors are getting worn, the pressure may be lower, and too much gas is entering the cylinders causing a slightly flooded condition, requiring you to press on the accelerator to open up and get more fresh air into the intake to get normal combustion.

    I'm not sure of this theory, but it's worth a try, if you happen to have a fuel pressure gauge handy.

    Good luck on this repair.

  • Duane Wong
    Duane Wong Oct 16, 2010

    Also, if the fuel pressure regulator isn't keeping the pressure to within specs. then that could cause a hard starting condition, initially.

  • Duane Wong
    Duane Wong Oct 16, 2010

    Also, check the compression of each cylinder when cold vs. hot to see if engine wear is becomingi an issue.

  • Anura uk
    Anura uk Nov 20, 2010

    HI today I got another problem in my Nissan Maxima 2001, i drive the car with low fuel light on and before rich to the filling station car get misfiring, then I stop car without engine stop and drive again to the petrol station and fill 91 octane in it the misfire is still do so wondering what happen today could u please let me know what I have to do for it' thanks.

  • Shivam7 Mar 24, 2011

    yeah man its a good idea!!!!http://www.usedtrucksdeal.com/

  • Shivam7 Mar 24, 2011

    its a great idea man!! thanks for sharing with us!!!!!http://www.usedtrucksdeal.com/

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