Computer? - Muscular Mustangs
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post #1 of 24 Old 12-08-2008, 05:24 PM Thread Starter
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Computer?

My computer is giving a "Check Engine" light on occasion when I start up. I then will shut down the engine, and restart, and the light is off. Do I have a bad computer, or should I be looking at a sensor?

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post #2 of 24 Old 12-08-2008, 07:51 PM
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Code is prolly stored. Get it checked out.

'87 GT with a battery
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post #3 of 24 Old 12-10-2008, 12:45 PM
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Yep, more than likely a sensor but you'll need to check for codes.



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post #4 of 24 Old 12-10-2008, 03:21 PM Thread Starter
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I went to the Ford dealer, they do not have the OBD for that year any longer. On the way home, I overheated, so I picked up a new radiator, its the original in there, this could be my problem, so I'll install it before I pursue checking out the codes. At Advance Auto Parts, they sell OBD's but don't have the older OBD-1, would you suggest buying one?

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post #5 of 24 Old 12-10-2008, 04:03 PM
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Yea you can usually buy one at any parts store, or if you goto Autozone they'll scan it for you.



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post #6 of 24 Old 12-10-2008, 04:14 PM Thread Starter
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I called 3 local Autozones, all will do 96 and newer. Guess I'll buy one.

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post #7 of 24 Old 12-11-2008, 07:47 AM
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Quote:
Originally Posted by pfhannan
I called 3 local Autozones, all will do 96 and newer. Guess I'll buy one.
That sucks. They used to all be able to do them, I guess they decided to only check cars with OBDII for now on.

There is a way of checking it without a scanner but its a little bit of PITA.
https://www.muscularmustangs.com/test1.php



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post #8 of 24 Old 12-13-2008, 11:34 PM
 
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I have a friend that has an ODB-1 but doesn't have an ODB-2, lol..

tell me if this is possible or just a hoax, but I saw some ad on a website about a thing that lets you use an ODB-2 scanner in an ODB-1 car. I don't know much about the computers in car, but that diesn't really sound possible.

Is it? Or was that ad just some spam crap?

-Z
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post #9 of 24 Old 12-14-2008, 07:57 AM Thread Starter
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I have been told only ODB-1 will work

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post #10 of 24 Old 12-14-2008, 09:20 AM
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Any Mustangs made after 1995 use OBD II. Before that Ford used their own proprietary computer diagnostics system as did most other auto manufacturers which some refer to as OBD I. In reality OBD I is just a reference to diagnostic systems made before OBD II was implemented. OBD II was government mandated standardized on board diagnostic system.

It is possible that a code reader, also referred to as scanner, can read both but unlike OBD II previous systems used different connectors for each manufacturer, sometimes even vehicle specific connectors. So if the scanner you're buying says it can scan both then make sure it comes with the right connectors for your car.

More than likely when you're looking for a code reader for the 5.0L Mustang you'll be buying one that says it is Ford specific and works with the EEC IV computer system. If it says it is just an OBD II reader then it won't work with these cars.

More Information:
http://en.wikipedia.org/wiki/On-Board_Diagnostics



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