Hi everyone and welcome back to the Sawickipedia. Today we're going to be
looking at how to add obd2 capabilities to your car that does not have an obd2
port. So in this case we've got the turd Festiva from 1997,
it does have obd 1 but obviously that does not include the common obd2
connector, so what we have instead is a diagnosis port. So what we've got here is
two connectors, this main one up here is what we're going to be playing with, this
one back here if you short-circuit some of these pins you'll actually activate
either the fuel pump or a different relay which is useful for diagnosing - you
know things like fuel pressure issues and stuff like that, but this is what
we're interested in today and I'll just go through some of the pins here. So up
here we've got our constant 12-volt pin, down here is our ground pin, and the only
other two pins available are this one, and this one here, and these are going to be
our data pins. So I've done up a cheap little rig that I'll just grab now, so
this is your fairly standard cheap ebay obd2 connector and the pins inside these
connectors actually match up to whatever protocol your cars using - the only sort
of common ones of this orange one here which is our constant 12-volt and this
is a yellow one here which is constant ground. All the other pins will either
exist or not exist on your car depending on which protocol it uses, in which case
the Ford and the Mazda vehicles from the 90s a lot of them use the J1850
standard, which corresponds to these two pins that I've connected at the moment.
So we'll plug this in and see how it works. So at the moment you can see
there's nothing going on with the adapter,
I'll just turn the ignition on though. So as as we can see with the ignition on the
obd2 adapters now got power - indicated by the first red light. Okay and once we
open up our Torque app for Android or whatever app you're using to read these
codes, you'll see that all our lights begin flashing and we're now connected.
So using this you can do all the regular sort of stuff, you can scan for fault
codes which I think this car does actually have, so we'll look at those in
the next video, and beyond that you can get all your real-time information. So
we've got coolant temperature, engine load, obviously RPMs, fuel trims, mass
airflow sensor, intake air temp, oxygen sensors, vacuum, timing advance, speed and
throttle position. So even though it seems like an old connector there is
actually a lot that this can tell you about your older vehicle. Now as I said
this is pretty much found on 90s Mazdas and Fords, and some of them will have
different pins available, so if you've got an adapter that looks the same but
with different pins, a quick Google should reveal which pins will put out your data
signals. So that's about it for this video like I said it was pretty simple
one. These adapters are available on eBay for very little money but you want to
make sure that you get something that looks like the older style, I also have a
newer more slimline one and this one doesn't actually work with this car, and
the other thing was these wires - I just had them lying around I've just crimped
little terminals just to make it easier to connect. The other thing that did
confuse me when I looked on to get the pinouts for these things, they
generally show the female connector and because this is the male connector here
all the pins are gonna be reversed when you're looking at it. So make sure
you get those pins the right way around, like I said the common power pin is
on the very bottom right corner. So as long as that matches up you should be
able to figure out where the rest of your connections are gonna be. The
benefit of this is you can now read not only engine fault codes, but a whole
bunch of other other data from your older engine, so it's definitely gonna
make it a lot easier to diagnose any issues. I really hope this has helped you
out and if so please give me a thumbs up, also don't forget to subscribe to this
channel and hit that little notification icon for more useful videos and feel free to
leave me and comment down below. Until next time see you later!
A turd in all it's turdiness.
OBD1... ahh f**k. Today we're going to be adding obd2 to our pre obd2 vehicle... no that's dumb too.
But what we're more interested in is these pins up here... ahh f**k. So that's about it
for this one as I said it's going to be a pretty... ahh f**k