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Thread: Throttle Position Sensor or Injector Pump

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    Throttle Position Sensor or Injector Pump

    Hello All.
    Been through as many discussions as I can find and nothing that resembles this issue. I have a ZD30 direct injection Nissan Patrol. Started it, reversed it out of the garage went to go forward and bang, straight to limp mode. Checked the fault code with ECU talk. Indicated that it was Throttle Positional Sensor. OK, replaced the sensor making sure the OHMS setting was at .5 as per manual. Disconnected the battery overnight and refitted the peddle. The engine starts no worries. However, engine goes into limp mode once the engine revs above 1600 rpm. If I pump the accelerator as though it's a petrol engine trying to start cold, it will rev right up to 3 to 4000 rpm. Only problem is it will only run for a few seconds and cut out as though I turned it off. If I start it again, it starts perfectly but still won't go past 1600 rpm. When it stops the ECU Talk indicates that it is the TPS again. Any help would be appreciated.
    Regards homebrew.

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    Patrol God mudnut's Avatar
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    Check there isn't any hoses or other wires off under the bonnet or any moisture in any modules.

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    The master farter
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    Was it a brand new TPS you used as a replacement?

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    Thanks mudnut......Thinking about it, I did wash the car the afternoon before.

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    Yep, reportedly. Bought from Ebay. The new part does give the correct OHM reading when tested. The original just OL on millimeter screen.
    Thanks though.

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    The master farter
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    Which store? I used to run and import Genuine Nissan parts on eBay myself. Did so very successfully for six years. I know of a few stores selling “Genuine” parts when in fact they were Chinese copies.


    Sent from my iPhone using Tapatalk

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    Patrol Freak jff45's Avatar
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    If you have an Ecutalk, you can see on the screen if the TPS is working correctly. It would also have confirmed if the original really needed replacing.
    John

    2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body

  9. The Following User Says Thank You to jff45 For This Useful Post:

    Homebrew (14th April 2020)

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    mudski, The name of the Ebay store is goodstate. Interested to learn your opinion.

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    The master farter
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    Yeah it will be genuine.

    Those pricks started a big price war no eBay when they first opened up. There was pretty much me, Patrol a Part and a couple of others on there, we all would set our prices pretty much on par with each other, it worked well, me and and two other stores used to swap or sell parts to each other at cost if they, or I, had a customer after something in particular which we didn't have.
    Then this mob came along and was undercutting so hard I dont even know how they were making money. Now, every man and his dog is on there just doing the same thing, undercutting each other. I remember having to spend a few hours a day just sitting there revising prices by 1 or 2 cents, yes that little, just so I could sell something. Only to see a day or two later this mob had just lowered their prices again by 1 or 2 cents. and when you have over 1000 items to revise, it gets on your nerves a little. It was out of control.

    But I suppose its good for the consumer though, prices are cheap and not even worth these days from buying from overseas now. Just aswell I sold my business when I did. As I know the chap who bought it, is not doing real well with it now. And he paid bought the business with cash too which was even better.

  12. The Following User Says Thank You to mudski For This Useful Post:

    Homebrew (14th April 2020)

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    Well, that's the only bit of good news I've had in this experience. The price range for the TPS was quite considerable, from $180 plus to $105. Thanks again for your reply it takes another unknown out of the equation. Cheers.

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