Hi Michael!

> In the US, all cars sold new after January 1, 1996 were required to be OBD
> II compliant, and the connectors are all OBD II connectors.

So I thought my del sol has to have an OBD connector, but it hasn't. It
seems that especially the european hondas (96-00 modells) have ECUs with
reduced funcionality compared to the US versions. But it has a kind of
communication connector. I will go for a test. I ordered a ODB-II
compliant interface and will test it on my 2005 Civic and my '96 del sol.

> More recently a
> second standard, CAN, has come out for communicating with other controllers
> in the car but OBD II is still there.

There is actually a CAN version of OBD-II, but AFAIK Honda uses the ISO
protocoll for cars at least up to 2004.

> An OBD II reader connected to the
> access connector near the driver's knees will still yield all the mandatory
> emissions info. As to analog values like sensor numbers, I don't know. Those
> definitely are not available on the pre-OBD II cars and I have doubts about
> the '96-'98 cars, too.

I know that there is a way to do it (because there are products
available), even with Honda OBD-I ECUs, but I can't find any information
how to do it on my own. :-(

> For the pre-'96 Hondas, check out
> http://www.iequus.com/assets/manuals..._E_14JAN03.pdf
> for instructions. Note that anywhere they talk about a "reader" it is a
> simple jumper that shorts the two connector pins.

Thanks, I allready know this paper. But I'm (primary) not interested in
reading the vault codes...

Kind regards
Thorsten