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View Full Version : CEL on 1990 GSX

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Underhill
02-01-2006, 08:01 PM
O.K. I know, get the code checked out, I just don't want to pay $100 for someone to say it's a something-something error code. So, that being said, someone stole my datalogger, stereo, sub, and radar detector, on Mon night out of my driveway http://dsmstyle.com/forums/images/smilies/mad.gif http://dsmstyle.com/forums/images/smilies/mad.gif http://dsmstyle.com/forums/images/smilies/mad.gif O.K. on to the problem, I have a 1990 GSX, Dejon Tool intake (new), K&N air filter(new), no cat, Manual boost controler, Nology Hot wires (new), NKG plugs(new), O2 sensor (new), idle speed stabalizer (new). The car starts great from cold, and runs great (the good) untill I shut it off when it's up to running temp and restart it, then I get a CEL and it runs like it's not firing on all 4, if I let it cool down all the way and then restart, no problem.
tim
02-01-2006, 08:28 PM
You can check it without a scan tool or logger.

Here ya go--> http://www.dsmtuners.com/forums/showthread.php?t=190021
Underhill
02-01-2006, 08:32 PM
cool, now I just need a voltmeter :(
tim
02-01-2006, 11:00 PM
Go to wal-mart. You can get a cheap analog one for $10. If you want something nice you could get a nice digital one from Sears or wherever. Fluke makes good ones.
x-pride
02-01-2006, 11:49 PM
Make sure to check that none of your wires at the ECU is touching because you did mention your AFC was stolen.
GVR-4579
02-02-2006, 12:34 AM
I am pretty close to you , if you need i have a palm pilot with mmcd on it if you want we could probly scan it sometime soon too. i am usually up around there.
Underhill
02-02-2006, 06:55 AM
AFC not stolen, gona stop and get a meter tonight.
Underhill
02-05-2006, 10:38 AM
Got a meter, they only had digital ones, and it is hard to read exactly what the code is, it goes through the numbers so fast. I think it's either the O2 sensor, or the MAS. I just had the O2 sensor changed a a dealership, so I think I might bring it back into them and see if the sensor they put in is bad. Any thoughts?
dsm10sec
02-05-2006, 10:43 AM
Got a meter, they only had digital ones, and it is hard to read exactly what the code is, it goes through the numbers so fast. I think it's either the O2 sensor, or the MAS. I just had the O2 sensor changed a a dealership, so I think I might bring it back into them and see if the sensor they put in is bad. Any thoughts?Really, there's a cheaper and MUCH easier way to find codes for 1st gens. Go to RadioShack and buy a cheap buzzer, I think they're like 99 cents or somethin. Anyways, you can tell for sure if it's a short or long easily.
Underhill
02-08-2006, 06:51 PM
ok, got the code, and it's been traced down to a bad injector, #3. First question is, can I go w/ bigger injectors, without having to do very much else? (if so, what else do I need to do) And, what kind of $ am I looking at either with new stock size, or bigger and whatever else I need.