OBD-like scanner for NA6 ?

kazjim · Postby **kazjim** » Tue Feb 01, 2011 1:06 pm

G'day guys, i am aware that OBD-II didnt come into our little cars until around 98, but I've got a little 89 that seems to be a little 'confused' with its ECU ...

little things like coming to a stop sometimes results in a very low idle (Stall) or a normal one (havnt seen a pattern yet)

I know about the led-jumper across the diag terms and count the LED flashs, but i get no flashing at all., so no errors ?? no news is good news ??

Having an Android phone, i was interested in the Bluetooth OBD-II scanner and Torque software, but i know this WILL NOT WORK with my car

is there an alternative ?

failing that, is there a way to do a factory-reset of the ecu and then set my idle and spark advance to get smooth running ?

cheers all
J

SuperMazdaKart · Postby **SuperMazdaKart** » Tue Feb 01, 2011 5:12 pm

Sounds like you want the Mazda self diagnosis checker. Won't be easy or cheap to get one as they're Mazda's own equipment. Or you could just pay the $50 fee for having a dealership do a diagnosis check on your car.. A Ford dealership be able to do so too since they used the same equipment for the Ford badged Mazdas like Lasers/Telstars etc.

the System selector also gets used for setting idle & ignition timing too in the service manual.

Garry · Postby **Garry** » Tue Feb 01, 2011 5:36 pm

Have you set the base idle speed to the correct setting?

de Bounce · Postby **de Bounce** » Tue Feb 01, 2011 5:57 pm

Appears to be a common problem :evil:

There is an article on the MX5 Victoria Club site or search of the big forum for "idle dip" or "base idle"

project.r.racing · Postby **project.r.racing** » Wed Feb 02, 2011 9:19 am

If the rpm is dipping under braking, I'd be cleaning the IAC valve 1st. It will not show up as a fault if just dirty and getting stuck. 99% the reason why you get a dip in revs while braking.