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Date:         Sun, 6 Feb 2000 22:04:40 -0800
Reply-To:     se7en <manx1342@USWEST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         se7en <manx1342@USWEST.NET>
Organization: Classified
Subject:      Re: Tii Trading Co. 2.0 South African conversion kit
Comments: To: David Marshall <vanagon@volkswagen.org>
Content-Type: text/plain; charset=us-ascii

David Marshall wrote: > > Wow... as I said, very strange - how do you adjust the CO content of the > exhaust? You're getting something that will be illegal in Canada and more > than likely most of the USA. In Canada (BC and NS, NB, PE at least), if > you car has an O2 sensor and a catalitic converter you are not allowed to > remove them, BIG fine if you do (Shhh - I don't have a cat!). I'm pretty > sure the EPA has a rule like this for the United States as well. You > should really try to keep the cat, but without an O2 sensor, it'll die a > quick death. There must be a provision for an O2 sensor somewhere! >

David,

Here in Portland, Oregon, the bi-annual emission tests done by the local DEQ that we have to pass do not include equipment checks anymore. Our vehicles are put on a 'rolling road' and tested under various loads at the driving wheels while the emissions are checked. It's basically 'go' or 'no-go'.

I don't know much yet about the Motronic ECU but I have just turned up the Bosch fuel injection & engine management book. Since I don't know the exact model of the kit ECU I can't sort it out completely yet. I do believe there are other ways of controlling carbon monoxide than having a lambda sensor. I also don't believe that the 'cat' will necessarily live a shorter life without one. There are many carbureted vehicles out there with 'cats' and no lambda sensor. Who knows, maybe (Darwinism) the CO sensor is a dead end also, like, remember all those air pumps on the cars in the Eighties? PCV valves have certainly stood the test of time.

Some basics of Motronic systems are the sensing of engine load (air flow), RPM, crank timing (much more exact, independent of dwell), battery voltage for coil charge time control (no more hot coils), a built in ROM that 'learns' the ideal parameters needed for efficient operation (right down to each individual cylinder) and more. There are Motronic variants that sense different things, and until I get more information on the model I'm getting, I will stop here. All I care about is 'what' comes out of my tailpipe, now what gets it there.

Anyway, I feel this conversion is going to work for me or I wouldn't have gone into debt to get it. Yes, I'm an optimist. Actually, I'm an Irish optimist. I try to buy the pertinent books and learn all I can from them. I'm also a bit anal-retentive (does that have a hyphen?) but my sense of humor (perceived) is what also keeps me sane (again, self perception). I also really appreciate the many things in the many areas of Vanagon ownership that I have gleaned from this list server. So much to learn, so little time. As for being legal or not, well, someone has to be the 'Last Outlaw'. Sounds like you're in the running. I won't tell. Sure hope no RCMP,s are list members.

Hopefully I'll have lots more info in about a month. I'm staying busy installing an aux battery, a security system and some aux gauges while I wait.

Arlen - master lurker.

> > > >David Marshall wrote: > >> > >> No O2 sensor??? Really? That's really strange! > > > >That's what I understand. We'll see when it gets here. Apparently it is > >a Motronic brain. > > > >Arlen > > > > > > -- David Marshall - - Quesnel, BC, Canada -- > -- 78 VW Rabbit, 80 VW Caddy, 84 VW Westie, 85 VW Cabriolet -- > -- 87 Audi 5000 Quattro, 88 2.0L VW Syncro Double Cab -- > -- David's Volkswagen Home Page http://www.volkswagen.org -- > -- Fast Forward Autobahn Sport Tuning http://www.fastforward.ca -- > -- david@volkswagen.org (pmail) or vanagon@volkswagen.org (list) --


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