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Andi

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Posts posted by Andi


  1. The pipe from the carbon canister comes out of just under the throttle body somewhere, it goes to the left of the engine bay and has a sort of disk shaped valve that I think was attached to the suspension turret. The hose then dissapeers under the airbox where it goes into the carbon canister underneath the airbox at the front of the bay.

    If its this hose then look for the thread vr6 carbon canister location, I think its in the tuning section.

     

    The carbon canister pipe is capped in the centre of this picture:

     

    im000946.jpg


  2. A rechip might get you 12-15bhp - but its more likely to do that if you have the air filter, exhaust, decat done and the chip is setup in order to benefit from these.

     

    On their own you won't see much difference - all together, you might see ~15-20bhp.

     

    The exhaust isn't that restrictive for the standard engine, the CAT is a sport's cat anyway, and the air box isn't that bad... so altering all that doesn't normally bring anywhere near the normal benefits you would expect of 'lesser' cars (that better? ;)) and the mod's manufacturer's claims.

     

    I would predict the following:

    decat = 2bhp (if your lucky - some find a decrease)

    air filter = 1bhp

    exhaust = 2bhp

    rechip = 10bhp (again, depends on a lot of the engine's charactistics).

    corrado-forum.net sticker = 40bhp (well, might have exaggerated that one...)


  3. This is pure guess-work.....

     

    How about if the cluster contains both OTP EEPROM and a Flash EEPROM.

     

    The base mileage is stored in the OTP, and the accumulated mileage is added bit-by-bit (incremental bits - simplest of computer code) to the Flash EEPROM, using 'special application software routines'.

     

    The display cluster takes the value of both, adds them together, then displays it on the LCD (don't get me started on the physics of LCDs - fascinating stuff!). Due to the special programming required to alter the Flash EEPROM, the cluster is left to do the workings on this - but VW had ONE chance to alter the mileage by doing their only write to the OTP.

     

    So with Steve's cluster, I would assume the Flash EEPROM has wiped itself, resulting in zero being displayed. Which would suggest the single-write to the OTP is still feasible.. and maybe the answer.

     

    How you do that... pfff, I dunno!


  4. So how come you can erase files (i.e. lots of bytes) from your CF (Compact Flash) card without erasing the whole thing?

     

    Compact Flash is not Flash EEPROM. It's a different type of non-volatile memory. Flash EEPROMs are like the BIOS in your PC, and generally about 128kbytes (depending on what it has to control). Compact Flash can now reach 2gigabytes in storage. The access methods of Flash EEPROM wouldn't be able to accomodate this capacity.

     

    So the original, "base" mileage is stored in OTP and then you can't write to it anymore (cos it's OTP!!!) so how does the cluster retain the base+travelled mileage (or km'age!).

     

    No idea. Maybe there's a hamster in there?? ;)

    Steve - did you forget to feed the hamster?

     

    Must take mine to bits and have a poke around....

     

    Don't do it on a day like today with your car parked in direct sunlight. I am now sporting burns on my fingers from the temperature of the metal clips that hold the cluster in. It's a tad warm in there!! :shock:


  5. ...mind you having seen first hand what Andi's VR did up a hill... :shock:

     

    ...I want one... :p

     

    And that was with 3 people in the car. When you're on your own, it's even more fun! Just no-one to show it off to... I'll take you out for a spin on the motorway one day... ;)

     

    Just fixed my water temp guage and now have verrry cold aircon working too! :D


  6. For anyone like me who has aircon - and lives south of the Thames (I'm not sure if he goes any further north) I can highly recommend Southern Aircon.

     

    Kevin (he's a sole trader) has just sorted the aircon on my C which has been faulty for the past year.

     

    It didn't need a regas - it was relay trouble. He'd been sourcing a Daviair relay for me for the past month, and it finally arrived, and cost him £30 inc. VAT, so I got it at his cost, plus another, more standard, relay, which cost a fiver - and the total bill came to £45 after being with me for just over an hour!

     

    He's mobile, so he comes to you at work, home, weekends, whatever, and his lead time at the moment is about 7-8 days.

     

    Full regas costs about £70-80 and he's a top bloke!

     

    Southern Aircon

    Office: 020 8296 0859


  7. What is an EPROM?

    EPROM(Erasable Programmable Read Only Memory) can be programmed and erased enabling them to be re-used. Erasure is accomplished using an UV (Ultra Violet) light source that shines through a quartz erasing window in the EPROM package.

     

    There also are OTP (One Time Programmable) EPROMs, sometimes called OTPROMs (One Time Programmable Read Only Memory), that are identical to an erasable EPROM but lack an erasing window to reduce costs. To reduce the cost these EPROMs come in a windowless plastic carrier, which is cheaper than the costly ceramic package required for the erasing window.. They can be programmed one time only, so these are used after the code is bug free.

     

    What is an EEPROM?

    An EEPROM (Electrically Erasable Programmable Read Only Memory) is similar to an EPROM but the erasure is accomplished using an electric field instead of an UV light source. This eliminates the need of a window. Usually, EEPROM refers to a device that requires a programmer or special voltage to program it.

     

    What is a Flash EPROM?

    A flash EPROM is similar to an EEPROM except that flash EPROMs are erased all at once while a regular EEROMs can erase one bye at a time. In- circuit writing and erasing is possible because no special voltages are required. To accomplish in-circuit operation, you have to write special application software routines. Flash EPROMs are also called nonvolatile memory..

     

     

    So, let us assume the VW cluster contains a OTP EPROM - how can Steve reprogram his mileage back in (I assume you'd like to.. though personally I'd lose a couple of thou.. :mrgreen:) :?:


  8. From their website....

     

    Q: Will the insurance company recognise and accept what has been fitted?

    A: If you use GAP Security then the answer is yes. GAP Security is MESF accredited, which means that their engineers are approved by the insurance industry to install security devices. In addition, the products we fit are Thatcham approved, meaning that the Motor Industry Repair and Research Centre have tested them.


  9. My neighbour had GAP Security install a Clifford Sigma in his Celica GT4 a couple of weeks ago.

     

    The installer was a nice bloke, and the quality of the install looked tidy enough to me!

     

    I now know when my neighbour's going out, as he starts the car from his bedroom about 2-3 minutes before... ;)


  10. I thought EEPROMs where wiped by ultra-violet light, not voltage mismatches.

     

    I doubt very very much if disconnecting, shorting, rewiring your battery in ANY way would affect your mileage. There are capaciters, diodes, resistors and fuses all in the way in order to prevent this.

    If this was so, it would be a pathetically weak design by VW, and I'm sure we would have heard of many more zero'd cars from budding ICE Installers.

     

    I would guess that the EEPROM has developed a fault since the winter, and finally losing its permnament live has caused it to reset. There could be a million in one reasons...

    Did you do any work near the dash with your ICE install? Splice into any looms?

     

    I bet the faces of the mechanics that do your next service will be a picture when they check the mileage....

     

    "Yes, the car is currently at 900miles, when do I finish running it in?" :)


  11. Newspaper on the outside and read from the inside... 'cause that's what you're doing when you're drivin'!

     

    I normally have the newspaper up against the steering wheel whilst driving and reading.......

    .....Joking!

     

    Ok, might try that. 'Cos I think my tints are 'medium' so I would be interested if that is too dark or not.


  12. If you're really worried, hold up a newspaper to the window and if you can read it through the tints you should be ok, borderline, better get it looked at.

     

    Newspaper on the inside and read from the outside, or vice versa?

    The paper would be less readable if its on the outside, looking from inside the car, as there would be less light to reflect.

    Erm, I think.

     

    Interesting test, though!


  13. The bigger wheels will make the car sit even higher,

     

    Changing the size of your wheels does not alter the ride height, as the lower profile tyres compensate the larger wheel size.

    However, C's on 17s and normal ride height do look like 4x4s so normally a 20-30mm drop compensates for the visual effect of the larger wheels.

     

    Personally, I have a C on 17s and normal ride-height... and it actually looks fine.

    And on every drive, I still ground out, clip the front chin spoiler.. so I won't be lowering it yet!

     

    I do agree with keeping a Storm a Storm.


  14. Now, all of our gatso - speed cameras have to be painted bright yellow or refective yellow sop you can see them.

     

    Sadly, incorrect.

    Did you know it's now legal for the local councils to hide GATSO cameras ? They don't have to be yellow any more, and can be hidden out of sight due to a high court ruling!

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