Without reading enough, I went and bought this ELM327 bluetooth OBD reader: http://cgi.benl.ebay.be/Bluetooth-OBD2-ELM-Code-Reader-Scanner-Can-327-wireless-/270571530563
It seems to be able to read the engine RPM of my 2001 Renault Clio ok (as well as some other info, but RPM is really the main thing I'm interested in), but I haven't got it to work with RaceChrono yet (tried both version for Nokia and version for Windows Mobile), so I'm wondering if it's a reader problem or a problem with the car.
Using scantools.net v1.13 on the PC, it gives me the following information:
Interface: ELM327 v1.3a
Manufacturer: OBDII to RS232 interpreter
Protocol: ISO 14230-4 KWP2000 (5-baud init)
OBD System: not OBD compliant
I'm wondering if the issue is that the car isn't OBD compliant, or whether it's just that I should go buy OBDKey?
Thanks a lot!