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Dealing with Outdated Automotive Software?
Jan Hendrik Montag asks: "My car mechanics had problems to fix a problem in electronic motor management with my 14 yr old Audi. That was not too surprising. But as my mechanic consulted a Volkswagen/Audi-company, they received the answer, that my car is too old and they don't have the appropriate devices and software to read my cars' mind. I just wonder, what will happen in 20 or 30 years to then-vintage-cars from today? Shouldn't there be a necessity to declare old car-software and diagnostic devices open-source just to make sure a collector then can repair his/her car just as it is possible to repair an old car from the 60's? Or will those cars be doomed in case of failure? What would be a solution?"
There's no great secret to controlling an engine, so I don't see the point. If we want to think about this in computer terms, the engine controller is comparable to a text editor. Everyone knows what they do, there's a standard file format, no surprises. You don't like one, or the person maintaining it gives up, you use another one.
For some time now, you have been able to buy generic engine controllers which just need calibrating to work with your car's engine (I know, I work for a company who makes them). These aftermarket ones used to be pretty dumb - time, emissions legislation and cheaper microcontrollers have made a big difference to this now though. In fact, it's not inconceivable that an aftermarket one would give better performance/economy/emissions than the old one, by having more accurate calculation, better modelling of engine behaviour, etc.
Maybe there's someone who's desperate to use only original equipment, who will insist on using an engine controller with a dodgy old 8-bit micro when the cheapest Ford is coming off the production line with a 32-bit micro. I don't see the point in it myself. The engine controller doesn't change the character of the car (if calibrated to give a similar response to the old one), so replacing it shouldn't be an issue.
Grab.
Find a better mechanic. I/my wife owns an 89 BMW 325i Conv. It is way cool, pretty fast, a lot of fun and cost less than $5k in very good condition (less than 100k california miles). We found that headaches are minimized if you find someone who is *truely* an expert in your car. At first we went to a mechanic to do some really minor work and everytime we took it back, something new was broken! Bad. (Mechanics will never admit fault for something like this, even if they fix it they act like they are doing you a favor) Anyway, find a good (very good) german mechanic. I'm willing to be a good vw mechanic may suffice, given the similarity of the makes, but not sure.
14 years is not that old. These cars should still be very fixable. You don't need a new car, you need a new mechanic. Ask around.
-Sean
#1: Your mechanic is full of shit. I believe current VAG dealer diagnostic tools analyze your year, and if the current ones don't, it's not like dealers just throw away older diagnotic tools.
r t DIY Fuel injection controller. There are a shipload of Audi's running this, and the mailing list is quite friendly
#2: http://www.ross-tech.com/vag-com/
Buy the diag tool yourself. Tell mechanic to get bent.
#3: 1989 Audi? Might not have OBD-I, and the engine controllers back then didn't have a bunch of diagnostics. Sounds like you may have a lazy mechanic who doesn't want to take the time to actually diagnose your problem instead of plugging in a connector and charging you $90.
#4: http://www.bgsoflex.com/megasquirt.html
Megasqui
"As God is my witness, I thought turkeys could fly." A. Carlson
I've owned several audis, including an '86 80 sport, a 1990 5cyl 100, and a 1995 S6. This guys website is full of useful stuff. He markets a kit for the palm pilot that should answer your needs Remember, far more energy is used, and more CO2 is produced in building a car than it will produce in its lifetime, so keeping old cars running is good for the environent!
It simple really, what will become of cars from today when they become classics. They simply won't.
You see, cars like the '57 Chevy or the '68 Camero were unique, they only made so may and the ones around today were lovingly restore or maticulously cared for so that they exsist today. But it's not just that, those cars were made to last. That's why you still see a '38 DeSoto or a '42 Dodge Pick-up. It's also why you can go to a junkyard, buy and old Impala or Oldsmobile and restore it. There's parts out there and you can repair what you can't find. But, as cars went on, and companies wanted larger proffit dividens, and then came plastics...
Nowdays cars aren't built to last, well, not last lifetimes. They're built to last until the payment book is done. Sure you have exceptions like Toyota Camary's or Honda Civic's that go on and on, but there's nothing unique to these cars. Their people movers, and that's it. I for one can't really imagine taking my kid, on a warm spring day, to an autoshow just to see a bunch of '92 - '96 Tercels or '87 - '91 Sentras.
Then there's the plastics I mentioned. My last car was a '94 Chevy Cavlaier Wagon. It was mostly the same car as the '81 Chevy Celebrity, or the Oldsmobile Ferenza, or the Pontica Sunfire / J2000, or the Cadillac Cimmaron, or the Buick Skylark / Century. All of which had a nearly 15 year stint known as the General Motor's J-Body design. But it's not just GM. The Ford Taurus is the Mercury Sable, or the Ford Crown Victoria is the same as the Mercury Grand Marquee or something like that... It's not just American cars though, the Pontiac Vibe is also the same car as the Toyota Matrix... Which was the retool from the wagon variance of, you guessed it, the GM J-Body. The only diffrence between these cars is a plastic molded bummper or body panel. Strip away that and you have the same 2.2l I4 engine mounted to the same H3430 3 speed automatic front wheel drive system with front disc brake and optional rear wheel discs...
But it goes beyond that, the materials used now days aren't even designed to last that long. A friend of mine has restored a 1985 Buick LeSabre. (GM H Body I believe, same thing as the Chevy Capris Classic for those keeping score.) A problem arose from when his coolant resevoir cracked and he had to replace it. General Motors changed the design to the resivoir in 1988 to make way for a redesign of the cruise control vacume system. So the part, even as a replacment part, was discontinued in 1991. The part itself was made of a sub-quality plastic that, after about 15 years becomes hard and brittle. So you can't go to a junkyard and buy another one off another Buick as, it too, will crack and brake. In the end, his only option was to use ducktape until the whole of the container rots and he has to make another container all together.
I know I have harped on American cars alot, and I really do love them, but even the author's AUDI is not unique. Audi has for years traded engine and body parts and techniques with Volkswagon, so much so that alot of Audi's now have VW W8 engines, while VW itself builds three of it's cars on the same chassi. The Passat, New Bettle, and Jetta are, when you trear them down, all the same car...
Oh well... Hopefully tennagers won't get ahold of too many Malibus or Impalas (the old ones, not this new crap) and enough will be spared 22" wheels and hydrolics that they will still be drivable in 20 years so that when I take my kid to a car show one day I can show them that, damnit, their used to be some nice cars. Some style that wasn't just an option package, that steel was fashioned into moving elegance, and cars of this caliber should not be messed with aside from the factory design, and that one time long ago, it was just wrong for Cadillac to make a pick-up.