1991 Eagle Summit check engine light

[koihoshi]

Ok it's OBD1.

I know there is a way to check codes without it using a voltmeter but not sure how?

The car is not chugging, has no loss of power, is not smoking, not overheating and is running fine, no odd noises. However, check engine light sometimes goes on and off. It's very sporadic and not consistent.

It has no pattern of whether it is more when the car is hot or cold.

Any thoughts? I have been told some OBD1 cars just have a pattern of the check engine light turning on for the stupidest things.

Suggestions? Thoughts? how can i check the light to see what the hell it is? I can't even find the place to plug in to even read the OBD1...

[jombee]

The Quick Paper Clip Test
Since we are looking at the connector pins, it should be mentioned here that a quick method to see which trouble code or codes are being set in your cars ECM is to jumper the A and B pins of the 12 pin ALDL OBD1 connector with a paper clip. While the car is off, sitting still, turn the ignition key forward while this jumper is in place. Do not start the car. The Service Engine Soon ( SES ) light will flash in a repeating sequence, telling which trouble codes have been set in the ECM. A service manual for your year car will have a chart outlining what each trouble code stands for, or this Trouble Code website can be of help. This paper clip method will tell you the trouble code or codes set in your ECM, but it will not tell you what conditions the trouble code is being set under, or let you clear the trouble codes on the fly, as the ALDL cable and PC setup will.

Read This
http://tunertools.com/vendorinfo/OBDdiagnostics_page2.asp

[SoCalZX2]

On my old '92 escort the connector was in the engine bay, and I had to jump 2 pins to get the CE Light to blink, and that was the code number. I'm not sure about an eagle though...

[koihoshi]

Ok but where is this thing located at? I can't find the port to plug it into.

[Texas Tracer]

On older mitsu's it's usually in the engine bay on the pass. side firewall. They also have a thing called an ECI checker for OBD1 mitsu's.

[koihoshi]

You all rock, thanks for the help. <3 u guys.