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smj999smj smj999smj is offline

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  1. smj999smj
    Nov 22nd, 2014 12:53 PM - permalink
    I'm assuming you are referring to the drain plug on the engine block and not the petcock on the lower radiator tank. To be honest, I don't believe I ever removed the block drain on a VG engine. If you are replacing the water pump, I wouldn't bother because most of the remaining coolant in the block (after you drain the radiator) will drain out when you remove the water pump (just make sure you put a drain bucket below it before you take it off). If you are dead set on removing the block drain, look along the sides of the block near the freeze out plugs; if it has one, it'll be in that area.
  2. 1Wrench
    Nov 22nd, 2014 02:30 AM - permalink
    Greetings smj999smj,

    In the real world my name is Bob Triggs. I am new here. I have been reading many of your replies to tech questions here. I have to say that your offerings here have been very helpful to me in learning more about my engine and vehicle.I have a 1995 Hardbody VG30E 4x4 truck. I am in the process of doing timing belt, h20 pump, shaft seals, thermostat etc. A heavy duty tuneup. It has just over 200K miles on it.

    One thing I am having trouble locating is the engine coolant plug. I hope you don't mind me asking you. Sincerely, 1Wrench (Bob Triggs)
  3. smj999smj
    Jun 2nd, 2014 08:58 PM - permalink
    Responded to thread.
  4. bellember
    May 29th, 2014 01:52 PM - permalink
    Hi smj999smj - can you please take a look at my reply in this post: Steering Linkages End Boots/Bushings and let me know what you think?
  5. smj999smj
    Sep 13th, 2013 08:16 AM - permalink
    (continued) If that's okay, then the ground wire circuit will need to be checked for continuity between the injector and ECU for an open circuit, excessive resistance within the circuit or a short. If that's okay, the ECU grounds should all be checked. If those are good, it is likely the ECU is defective.
  6. smj999smj
    Sep 13th, 2013 08:16 AM - permalink
    Reprogramming doesn't fix a bad ECU. Reprogramming is performed when the manufacturer (in this case Nissan) has issued an updated software program to fix a particular issue. Usually it's a matter of changing the values or range limits for engine sensors (ie O2 sensors). Also, ECU's don't "burn fuel." They make calculations on sensor inputs and then drivers in the ECU create a timed pulse for the ground wire from the fuel injectors. What I would do is get a "noid light" for Bosch style fuel injectors to see if the injectors are "firing." The light simply plugs into the fuel injector harness connector and will "flash" while the engine is cranking if the injector is being "fired." If it doesn't flash, the next step would be to use a 12v test light and make sure there is power at the fuel injector harness connector.
    Sep 13th, 2013 07:13 AM - permalink
    we got another ecu that was now sending the right signal to the coil packs, but this ecu wasnt burning fuel, so ignition kicks but does not start. but i was told the exact same thing by a friend, that ecu,s failing are very uncommon. what what ill do is have the ecu diagnosed and see whether it can be remapped or reprogrammed!! ill keep you posted on
  8. smj999smj
    Sep 12th, 2013 07:48 AM - permalink
    Sounds like you have a bad coil pack; does it have individual coils (aka "coil-on-plug")? What is the stored code? Nissan ECU's obviously can fail, but it's pretty uncommon.
    Sep 12th, 2013 06:13 AM - permalink
    thanks so much, im in kenya n i cant say that we have really good techs here. with my ecu the car actually starts but its not sending a signal to one of the spark plugs, its sluggish and the MIL is on. so i was told i MUST get another one. some say a diagnostic tool can reset this, some say get another ecu.
  10. smj999smj
    Sep 11th, 2013 07:40 AM - permalink
    I'm in the USA, so I can't speak for the ECU's in your country. We didn't get the B15 until the year 2000. The 99 B14 had the GA16DE and the ECU would just plug and play, if it was the correct one. In 2000, when our B15 arrived, it had the QG18DE or the SR20DE. These cars had immobilizer systems and programmable ECU's. The needed the key initialized to the ECU using a CONSULT II or later scantool or the vehicle would not start. On the plus side, you could replace the program on the ECU with the correct one for that vehicle (let's say you bought a used one), but you still needed a CONSULT II or later scantool and access to Nissan's ASIST terminal to download the ECU software program.

  About Me

  • About smj999smj
    2006 Pathfinder LE
    Former Certified Nissan Master Technician, 1985-2003.
    Prospect, VA
    Corrections Officer/Auto Technician/Truck driver


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  • Last Activity: Today 04:57 PM
  • Joined: Jan 1st, 2006


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Mar 24th, 2014
03:45 PM - sillingworth mentioned smj999smj in post Never Again!
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Jan 24th, 2015
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Jan 7th, 2015
09:58 PM - smj999smj quoted jp2code in post 1996 HB cutting out at 2000 rpm Update.
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