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CEL light blinking

Posted: Sat Jan 02, 2016 11:47 pm
by 1993SS5MT
So about 2 weeks ago I bought a 1993 Legacy SS 5MT, fully stock, only 211k at an Auction. First thing I'd noticed was that the Panel underneath the Steering column was unscrewed and cables were hanging. When I started driving the car, it ran good except that I felt a little lag, than the CEL started flashing on a pattern, ended up finding out that it was throwing me a code "22" for knock sensor...I'am guessing whoever had it before me, did all the steps in order for the car to give me the codes... so I replaced the knocked sensor, which was cracked but forgot to unplugged the black read memory connector when I repaired the problem and now the CEL light wont stop flashing, don't matter what I do, I tried resetting it and still keeps blinking, car runs fine but keeps blinking... ANYONE have and idea of this could be?? really appreciate it, thanks for reading.

Re: CEL light blinking

Posted: Sun Jan 03, 2016 6:12 pm
by cj91legss
There are 2 sets of diagnostic connectors. A black pair and a green pair. There's some more info in this link for you.

http://legacycentral.org/library/literature/codes.htm

Re: CEL light blinking

Posted: Mon Jan 04, 2016 5:54 am
by 1993SS5MT
Thanks, but that's what I mean when I say the previous owner did, because when I bought it It was already throwing me code 22, so I replaced the knock sensor, but I didn't unplugged the connector after I replaced the knock sensor and CEL started blinking non stop... I did the steps to clear the codes and all that on the Link but nothing works ? ;(

Re: CEL light blinking

Posted: Mon Jan 04, 2016 6:30 pm
by Legacy777
If the CEL blinks steady it means there are no codes. Make sure both the black and green diagnostic connectors are unplugged.

Here is a picture of both.

http://www.main.experiencetherave.com/s ... cuhide.jpg

Re: CEL light blinking

Posted: Mon Jan 04, 2016 8:05 pm
by 1993SS5MT
Thanks! big relieve!... you think it'll go away it self just by driving it with the connectors unplugged for a while?? because even with them unplugged, it still blinks steady...

Re: CEL light blinking

Posted: Mon Jan 04, 2016 8:18 pm
by robertpaige
Unhook your battery for an hour, it'll reset the ECU. After you put the battery back on, it should be fine. Leave the green and black unconnected.

Re: CEL light blinking

Posted: Wed Jan 06, 2016 4:44 am
by 1993SS5MT
Thanks, I tried, I unhooked it for over 24hrs and still didn't work?? really don't know what this could be, since the car runs good except just a little lag on boost on high RPM hardly noticeable but I feel it just a bit :?

Re: CEL light blinking

Posted: Wed Jan 06, 2016 8:06 pm
by robertpaige
You sure the black and green plugs are unconnected?

Re: CEL light blinking

Posted: Wed Jan 06, 2016 9:10 pm
by mike-tracy
There are 2 sets of black connectors under the dash

Re: CEL light blinking

Posted: Sat Jan 09, 2016 7:10 pm
by 1993SS5MT
Yea I'am sure the connectors are unplugged ;(

Re: CEL light blinking

Posted: Sat Jan 09, 2016 8:13 pm
by mike-tracy
here is a pic of the test connectors that need to be un-connected:

Image


The "other" black connectors need to stay plugged in.

Re: CEL light blinking

Posted: Mon Jan 18, 2016 12:18 am
by 1993SS5MT
Yea those are the ones but light still don't stop flashing ;(

Re: CEL light blinking

Posted: Mon Jan 18, 2016 6:13 pm
by Legacy777
If those are disconnected and the light is still flashing I would double check to make sure someone hasn't tapped into those wires or the wires are not shorted anywhere, which would cause the ECU to do what you're describing.