how to get codes

from 90 gts???/

nobody??????

are you asking for "how to retirve codes" or "how to interpret codes"?
To retireve, get an OBD1 cale and a laptop or a palm or buy a OBD1 computer. Each has different iconnections to the device, but to the ECU, its the same. look at any website or yahoo search it (Google is starting to sell out). Basically, olug into your port and i think you put the car into accesory ot the one just before you turn on your engine. I've only seen this done once in real life, but i was paying attention since i want to do something special with that knowledge.

To get codes, join the everything celica group and look at the nice code sheet they provide in PDF.

If i'm wrong (not likely) or anyone has any better suggestions (more likely), help this guy out
God bless.
GF

i heard you can retrieve codes if you put the car in accessory and watch the over-drive light flash...this is only for automatics though...

HERES WHERE IM @:"SUNPRO BY ACTRON" import code scannr for toyota/nissan/honda-1983-1992 $30 at autozone. basically 2 pcs. a plug thing and a jumper wire depending on vehicle type. havent tried it yet i will tomorrow. keep yall posted

update...that thing sucks. goig back in the am! plug it in and the check eng lite just blinks uncontrolably, no rhyme or reason to it. not codes, just non-stop blinking...it sucks

btw in the haynes book it says to bridge 2 spots in the diagnot box to get the same affect as that peice a crap i returned today