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JeffTT

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Posts posted by JeffTT

    Oil recommendations

    in Technical Questions & Answers

    Posted

    Absolutely no need to go fully synthetic , a good quality 10w 40 semi synthetic with a genuine Nissan filter is more than enough to protect the engine and cheap enough to do 5k mile changes.

    Thats based on doing + 1000 oil and filter changes on zeds in the day.

    1990 TT fuel pump ecu issues

    in General Discussions - 300ZX Related

    Posted

    Not come across that particular issue before but the ecu does not drive the fuel pump directly anyhow it signals the fuel pump ecu in the passeneger side rear side panel which has its own power supply as does the fuel pump via the green fuel pump relay in drivers kick panel so cannot see how a faulty pump could overload the ecu. 

    The starting issue could be caused by lots of things, bad timing, throttle balance, air leaks, spark plugs , idle control actuator engine temp sensor  or just bad connections.

    The ecu heating up maybe connected but mostly even direct shorts at the various sensors will not cause the ecu any issues, maybe just gone bad with age.

     

     

    Auto to Manual Conversion

    in General Discussions - 300ZX Related

    Posted · Edited by JeffTT

    On 11/01/2022 at 09:59, TheRealNips said:

     The labour is expensive as its an engine out job and its not the easiest job to pull the engine. 

    On top of that there is a certain amount of electrical work as well. My first ever 300zx was a converted auto and when I started it or floored it, the power light on the dash came on.

    The power light is an auto thing, so whoever did the conversion didn't do the whole conversion. Guides can be found all over the internet. I would have a good read through many to get an idea what it entails.

    Engine out ?? erm no
    Electrical work is small loom adjustment at the box ( starter inhibitor ) and the neutral switch at the ecu  
    Power light coming on when gunning the car after the convertion is because the auto box ecu has not been removed, disconnect loom connector and fixed !

    Looking at the prices of "kits"   it makes more  sense to buy a failed mot rust bucket scrapper and salvage the manual bits and sell the rest of to recup some cash, after all thats where the kits are coming from.

     

    • Like 1

    Yellow UK 300zx

    in General Discussions - 300ZX Related

    Posted

    Cringworthy description in the ad of which some are incorrect, the seller has little idea about what he is selling:

    Body Coloured Bumpers         All zeds had this
    Electric Seats                          Electric drivers seat
    Front Fog Lights                     WRONG
    Metallic Paint                         WRONG its pearl
     
    .Just had a cambelt service at Nissan !!  Recommend having its checked as near every one I had in the workshop that had a cambelt done at a Nissan dealer the belt timing was out, even had one with a non Nissan belt fitted from a dealer...that`s so bad !
     
    "Prices are rising and it will not be long before these are Supra twin Turbo monies" 
    Never going to happen, different breed of car....and Supra prices are hyped to near warp velocity anyhow
     
    Given the last time this car was in an MOT bay was 5 years ago is always a worry and the seller will put a ticket on it..Mmm...
     
    No engine pics of a performance car, very suspect, images in my head of a nasty bay. could be wrong but if so why not include pics?
     
    I so want the zed community to enjoy these cars rather than fall for these dealer tricks to attempt to manipulate the market, the 300 zx was such a unique concept that it needs to be not compared to other cars of a similar age and whilst it is a crazy thing, the Fast and Furious films really made the Jap car scene what it is today, of course the zed was never included in that and does seem to of come off less worthy as a result by followers of the series of films, just enjoy your ride for what it is not what you want it to be worth.
     
     
     
     
    • Like 4

    E10 fuel

    in General Discussions - 300ZX Related

    Posted

    Topics of this nature just boil my pee !  the powers that be just will not leave the motorist alone, its not enough that they are trying to force us  all to be driving highly unethical cobalt powered milk floats by 2035 but in the meantime mess with the fuel of our current petrol and diesel engines !  its all political crap anyhow just to fall in with the "green " demand in the world today, lets face  emissions on modern cars both petrol and diesel are so damn good now when compared to the 70`s gas guzzlers. 

    My question is,  the 10% bio-fuel part,  what exactly is it made up off and will it have clear standards to abide to?  I can see trouble ahead here, the Government broadly suggesting any cars from the year 2000 are compatible, strange that,  the wife`s  Audi Q5 has a sticker inside the fuel flap, clearly stating to NOT use any bio fuel.

    I noticed the Government website that has a very basic car compatible check, has a very clear message that it is the owners responsibility to ensure their car is compatible, yeh lets see how that pans out when cars start having running problems and damaged fuel systems... there is trouble ahead for sure !

    Ps Do NOT use bio fuel in your zed, it will kill it !

    • Like 3

    Rattling sound

    in General Discussions - 300ZX Related

    Posted

    Ok the belts are ancillaries, never seen any 1996 zeds with OBD 2 port ( in the UK ) ,  seen many +1999 models  ConZult though, kind of  sure the later version for the US was not true obd 2 port protocol just a connector change only as true obd 2 is a higher layer protocol utilising canbus communication, the Obd2 term is the connector of which  to which up to 5 different protocols can run on it, the zed ecu is just not that advanced, ConZult working on an adapter connector would be way more useful.


     

    Rattling sound

    in General Discussions - 300ZX Related

    Posted

    On 20/11/2020 at 11:41, Maria said:

     

    The belt you mentioned changing was that ancillary or cambelt>  if the later check the timing of all cams and bottom pulley.
    The car is not Obd 11 compliant so the fault  / error checking is likely not complete and or corrupted, you need to get a ConZult or similar to get full diagnosis and then move on from there.

     

    Foolishly removing turbo

    in General Discussions - 300ZX Related

    Posted

    22 hours ago, Wothers11 said:

    Sorry for the slow reply, busy few days at work.

    Unfortunately the photos just come up with a 404 error for me.

    Would it now just be a case of bending the locking tabs out the way and unbolting the turbo?

    Bum not sure why the error on the pics, they do show the fixings access and tabs, if you have an e mail I can send then to you.

    Jeff

    map chips

    in General Discussions - 300ZX Related

    Posted

    On 09/11/2020 at 11:23, Black-zed said:

    hi guys looking at changing my ecu chip over the winter, I currently have a jap map in mine which seems to be overfilling on the over run (popping from exhaust) although the car runs ok, I want to get rid of the boy racer 'pop' I've come across turbonoz stage 1 chips, couple of questions are these any good? and they list 2 for a manual t/t one standard and one listed as a jwt, descriptions on both are exactly the same so anyone got any idea of the differences? the other option is I have my old zed currently for parts, which has a chip in I bought from a club member around 16/17 years ago, not sure if this was a Jim Dixon chip (or a modified version) but I always had an auto gearbox code so not sure if that was the chip or the ecu itself had been changed. 

    Before looking to change the chip / eprom, a look at the mapping via ConZult would be interesting, also popping on overrun is symptamictic of  other issues,  air been drawn into the exhaust, or leaking injector,  not seen any generic chips that would cause that as on over runn and throttle closed the injectors and fuel is switched off in line with most every modern ( ish) injection system.

    Check cambelt / valve timing, pulsing from valve overlap may have an impact, or even the exhaust type, as said on overrun the fuel should be switching off so check the closed throttle sensor is actually activating correctly.

    Generic chips are fine for stock cars with mild boost increase and will perform very well even with larger injectors and bigger turbo`s, only after this stage does specific mapping come into its own, and then its really just fractional changes, by far the biggest way to get your engine running best is to get is set up correctly,  ignition timing, cambelt  / timing,  boost leak checks, recirc valves check for leaks, clean air filters,  good afm readings, throttle balance, vacuum pipes checked for correct connections, correct spark plugs, correct oil and good loom connections.

    Unless your confident to check all of these and have the correct equipment then get it checked over by Jim at PowerZed you will be amazed how different the car will feel after the essential checks and adjustments are done.

    • Like 1
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