Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Terminator Night Vision NZ


User Tag List

+ Reply to Thread
Page 7 of 8 FirstFirst 12345678 LastLast
Results 91 to 105 of 119
Like Tree54Likes

Thread: 2009 Colorado Engine Problem

  1. #91
    Member gadgetman's Avatar
    Join Date
    Jan 2012
    Location
    Christchurch
    Posts
    17,978
    Quote Originally Posted by Ryan View Post
    Well, a computer is defined as:

    "an electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce a result in the form of information or signals."

    So it's not wrong to call them as such. Perhaps a general / anachronistic term. Semantics aside, I doubt anyone would not know what one was talking about if they used the word.
    That definition says that the sensors are sensors and the ECU is the computer. The sensors do not tend to have microprocessors in them, most are either a switch, a hall effect device (detects metal/magnetic field changes), pressure or temperature sensors.
    veitnamcam likes this.
    There are only three types of people in this world. Those that can count, and those that can't!

  2. #92
    Member
    Join Date
    Nov 2012
    Location
    N/A
    Posts
    7,631
    I corrected myself.

    You're completely right GM.

  3. #93
    Member Tommy's Avatar
    Join Date
    Nov 2014
    Location
    W-BOP
    Posts
    6,529
    Nope, microprocessors abound as I said.

  4. #94
    Member
    Join Date
    Nov 2012
    Location
    N/A
    Posts
    7,631
    Quote Originally Posted by Tommy View Post
    Nope, microprocessors abound as I said.
    They'll be doing good work here.

    https://m.facebook.com/story.php?sto...04229246363923
    veitnamcam likes this.

  5. #95
    Member stretch's Avatar
    Join Date
    Sep 2014
    Location
    Clarks Beach, (South of) Auckland
    Posts
    1,738
    Quote Originally Posted by gadgetman View Post
    That definition says that the sensors are sensors and the ECU is the computer. The sensors do not tend to have microprocessors in them, most are either a switch, a hall effect device (detects metal/magnetic field changes), pressure or temperature sensors.
    Quote Originally Posted by Tommy View Post
    Nope, microprocessors abound as I said.
    You're both right.

    Modern cars are littered with CANBUS devices. Sensors, solenoids, actuators and other widgets. To simplify the wiring required, they each have a device ID and communicate digitally. The sensors do measure in an analogue way, but then the CANBUS device will digitise that signal (using microcontrollers and other digital electronics) for transmission to the ECU.

    Don't get me started on aircraft.

  6. #96
    Member
    Join Date
    Jan 2016
    Location
    Omaru
    Posts
    565
    Quote Originally Posted by Ryan View Post
    Where do you come up with this stuff?

    1. Given that the ECU and its associated sensors ("computers") are not dynamic components, they tend - unless one is referring to an over-engineered European marque - to be the most reliable components in a vehicle. I have never had to replace an ECU or sensor due to failure. The car I currently drive is 10 years old, no sensors have failed on it. The car before that would be 15 years old, no sensors failed on it either.

    2. There is no "increasing computer content" - code content in an ECU is a constant. Newer cars receive newer processors - see "Moore's Law".

    3. If you look around you'll find the majority of vehicles around were built before 2006 and still going well.
    You must be lucky, Ive had a knock sensor and temperature sensor die in a Toyota 7AFE, that was a bit older though. Then the BCM in a 2005 Comodore, I managed to fix that, holden put an under spec relay on it the welds the contacts and stops the indicators from working. Now Im waiting for the ECU to die, its bolted onto one of the heads....

  7. #97
    Ejected
    Join Date
    Dec 2012
    Location
    HBC, NORTH of Auckland
    Posts
    5,249
    All that really matters is the RS6 is good fun to drive and a forum GC let me rape the shit out if his, aye @BRADS. Scared you a little, good thing you were wearing your brown pants

  8. #98
    Member gadgetman's Avatar
    Join Date
    Jan 2012
    Location
    Christchurch
    Posts
    17,978
    Quote Originally Posted by Tussock View Post
    I have a 2005 Mondeo. Very simple compared to what you would replace it with today but it came off a farm with dealership servicing to 200K when I bought it. Its ready to be put off the road though it lools like new. Its faults have faults. Also the chassis flexes so much you can feel it and all the interrior tends to pop off violently.

    It was Moores law I was referring to. The accelerating obsolescence of processors.

    A laptop is getting sad at 5 years because it is a sea of switches and componentry and electronics get tired. Connections fade and you approach the point where the engineering specs are off on some parts. A fixed % of active parts in a system will have innacurate life expectencies.

    Those life expectancies would expire early and the part would be revised in a 1980s car that staid the same for a decade. It probably had for ease of reference 5000 active parts.

    Put a bunch if sensors and micro-processors on board and you have 500,000 active parts.

    Most of those active parts are electronic and very cheap to "advance" in order to have a new model to sell.

    The advance means the parts that were not to specification will be replaced with new parts, not revised.

    As soon as a vehicle is a pile of processors its life expectency falls victim to Moores Law, rather than normal vehicle mechanical wear.

    What I wonder about is what does a vehicle cost to a country. No one can afford new and the second hand market is violently contracting.

    So the only option is finance for all. What is the total finance on a vehicle that will be put off the road inside 10 years?

    I seriously doubt a 2016 vehicle will last till 2026.
    The main laptop I use is 12 years old. Most of the others I have are about 5 years old and showing no signs of giving up. The only physical switches are really on the keyboard and they are easy and cheap to replace even for my 12 year old laptop. The electronic switches (IC's) have a life of at least 20 years, typically way longer than that. The main obsolescence comes from operating system support being dropped and the newer versions are bloatware that are too slow to run on the old gear, but typically the 5 year old machine with a 10 year old operating system will do things faster than a brand spanking machine.
    There are only three types of people in this world. Those that can count, and those that can't!

  9. #99
    Member Savage1's Avatar
    Join Date
    Dec 2011
    Location
    Whangarei
    Posts
    3,488
    Wow this has gone off on a tangent.

    Turns out I couldn't help myself and bought the vehicle.

    Got a set of injectors out of a vehicle that had only 20,000k for $470, took two hours to put them in after snapping a bolt while torquing them in. And now she runs like a dream, just need to get them coded now. Local Holden dealership wanted $250 to code them, Autotech said $75.
    puku, jakewire, 7mmsaum and 4 others like this.

  10. #100
    Ejected
    Join Date
    Dec 2012
    Location
    HBC, NORTH of Auckland
    Posts
    5,249
    Quote Originally Posted by Savage1 View Post
    Wow this has gone off on a tangent.

    Turns out I couldn't help myself and bought the vehicle.

    Got a set of injectors out of a vehicle that had only 20,000k for $470, took two hours to put them in after snapping a bolt while torquing them in. And now she runs like a dream, just need to get them coded now. Local Holden dealership wanted $250 to code them, Autotech said $75.
    Nice, well your busy spending money want to Chuck some in my account

  11. #101
    Member Savage1's Avatar
    Join Date
    Dec 2011
    Location
    Whangarei
    Posts
    3,488
    Quote Originally Posted by Nibblet View Post
    Nice, well your busy spending money want to Chuck some in my account
    I'll forward your request to the wife.

  12. #102
    Almost literate. veitnamcam's Avatar
    Join Date
    Dec 2011
    Location
    Nelson
    Posts
    24,958
    Quote Originally Posted by Savage1 View Post
    Wow this has gone off on a tangent.

    Turns out I couldn't help myself and bought the vehicle.

    Got a set of injectors out of a vehicle that had only 20,000k for $470, took two hours to put them in after snapping a bolt while torquing them in. And now she runs like a dream, just need to get them coded now. Local Holden dealership wanted $250 to code them, Autotech said $75.
    If it runs like a dream what does coding do? Im more of a mechanical injection kind of guy.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

  13. #103
    Member Savage1's Avatar
    Join Date
    Dec 2011
    Location
    Whangarei
    Posts
    3,488
    Quote Originally Posted by veitnamcam View Post
    If it runs like a dream what does coding do? Im more of a mechanical injection kind of guy.
    I'm no expert but I think the injectors are tested after manufacture and given a code which identifies it's exact performance, ie flow rate etc, so coding the ECU to the injectors is just fine tuning.

    I could be completely wrong, as I quite often am.

  14. #104
    Member
    Join Date
    Apr 2012
    Location
    canterbury
    Posts
    1,640
    Quote Originally Posted by veitnamcam View Post
    If it runs like a dream what does coding do? Im more of a mechanical injection kind of guy.
    They code is for how long it takes to open and shut
    Your used to injection a fraction before tdc

    New stuff does small injections before tdc and ecu needs to know how long it takes each one to open and shut
    To work out the time each injection takes

    Stroke of luck that it went, most won't start if codes don't match
    veitnamcam and Tommy like this.

  15. #105
    Member gadgetman's Avatar
    Join Date
    Jan 2012
    Location
    Christchurch
    Posts
    17,978
    Quote Originally Posted by Tussock View Post
    Gadgetman
    Your 12 year old laptop is 12 years old. Its like my Comodore. I worked in a spacious engine bay yesterday removing simple parts and now I can go up hills again.

    Fast forward 12 years and things are a lot more snug.

    Things changed more last year than between your 12 year old machine and 5 year old machine.

    Accelerating obsolescence.
    I've worked on ones from the last year and there is no difference. Vehicles on the other hand ... I'll stick to older stuff.
    There are only three types of people in this world. Those that can count, and those that can't!

 

 

Similar Threads

  1. Subaru Forester 2009 cam belt
    By ANTSMAN in forum Outdoor Transport
    Replies: 13
    Last Post: 27-04-2016, 09:22 AM
  2. Toyota engine I'd
    By Munsey in forum Outdoor Transport
    Replies: 26
    Last Post: 27-11-2015, 09:04 PM
  3. Escudo engine
    By northdude in forum Outdoor Transport
    Replies: 15
    Last Post: 25-08-2015, 11:14 AM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!