Re: 92 Mustang minor problems
A rather cheep way to read your code is to jump the self test terminal to a
particular spot on the code reader plug next to it. A process I don't
recommend on account if you get the sequence wrong it could fry your CPU.
(I found this out the hard way.) The cheep little code reader that they
sell at Autozone is really good insurance. More important is to get the
Chilton's book "How to Troubleshoot your Electronic Ignition". A common
trap is the assumption that when a sensor reads out of limits that the
problem lies within the electronic sensor and not with the physical
parameter that the sensor is monitoring. It is entirely possible that the
reason the sensor says something is out of limits is because the thing it is
monitoring isn't working right. (Like the reason the O2 sensor says your
engine is running rich is because, guess what, the engine is really running
rich.) You really don't want to find this out after you've dumped fifty or
sixty bucks on a new O2 sensor when you really needed to replace a faulty
injector, or change a dirty air filter.
"melonballer" <email@example.com> wrote in message
> Hello all.
> I have various minor issues with my mustang, but mainly, the check engine
> light is coming on most of the time. At first, it seemed to only come on
> briefly within the first five minutes of starting the car. I don't see a
> correlation between the light and anything in particular.
> Reading through the index and TOC in the Haynes manual found nothing
> relating to the port/connector for an OBD unit to hook into. Does anyone
> know where this is located? I wanted to find a cheap way to do use an
> OBD reader without paying for a new one. This seems wasteful if I may
> only use it once or twice.
> It may be worth mentioning that there is a wiring harness below the
> steering column that came apart on it's own and is now held together with
> a ziptie. I glanced over this group many months back and it seems to be
> a common problem with this type of Mustang. I can get photos for anyone
> I know near nothing about cars and would like it if anyone here would
> suggest a good website for me to learn more. I have googled in the past,
> but feel people here likely have the best sites bookmarked :)