'91 ecu troubles

[fixkick]

the cel pin must flash.
on the bench you need a lamp or led on the CEL pin,
or the meter, in volts mode
the meter must be connected to the +12vdc for it to wag, just as the lamps does, the Ecu can only ground the cel pin,. is why.

I think this Germane ECU has special way to get the CEL to work.
one car a 1998 has knob slot on side of ecu, a switch there that turns with a screw driver, odd but real, some hondas did same deal.
there iS NOT stardards for OBD1, each maker was free to do , yes really odd things.
your car it shows the CEL lamp is wired, but missing, that means they are so cheap , to save 10cents on a bulb then, so the tech has to connect his.... how lame is that?
some ECU have leds on side port of ECU, (again seen on some hondas (old EFI)
if i had this car, id not touch it lacking a matching FSM book, id buy one, it be first day thing,
10x that outside USA< (our cars are documented well here)

here is a quote proving my points above.
"Some vehicles such as pre 1998 Mitsubishi's and Hyundai's, plus some Kia and Mazda vehicles do not display codes on a flashing dash light.
These vehicles give their code signals, directly TO the diagnostic connector.
You will need to use an LED tester or a Voltmeter to read the codes from these vehicles. "

some posts show jumping pin S(ground) to pin Q (DIAG)
PIN T (LAST) IS MY GUESS ON LED PIN,see drawing below.
this allows the LED to flash codes. (a 12v 0.050 ampere (50mA) lamp works with no resistor, too)

i read all over the world to find this. this is my best guess, not having a real FSM. BOOK.
if the left pin B ? is 12vdc key on, (Power, connect the LED ? to there) then great ! we have some power to use.
if the T port is dead, jumper-ed. like this? drawing.....

then move the LED minus lead, to the engine fail pin P. see if that flashes, ?
codes:
http://www.troublecodes.net/Kia/
omg, what an odd ecu with long PULSE rules. the long = 10 short. what silly complexity that. and no good codes (im good)
watch out , ive seen some ecu's, send out infinite short pulses, and means IM OK> (like a snare dummer, didiididididididididi)

best to do this with 1 sensor unplugged. in order, if easy IAT, ECT, map or MAF (if have one) or last TPS. so you have hard failure key on,
no need to crank it, to get LED light working..
once we have flash working ,then we can fix this. problem.

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sorry missed your older post (fuses)?
yes, ive added fuse to injectors and spark drivers.
10amps slow blow.
injectors are like 1 amp pulses. 10 ohm injectors I = E/R
same with spark. or 5amps. for 5 milisconds. so dont take to big a fuse.
if the coil shifts the fuse blows, before driver transistor blows to hell.

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im sure we can get this to flash, if it is NON OBD2.
pretty sure..
but i can not read Korean...... LOL

i bet B pin is 12vdc (battery Key on) the Korean shows, B+ (battery plus) making the led more easy to fit up.
the ECU will only sink current (an open collector driver here is "traditional" or Open Drain MOS FET)
it can only sink current never source it,.
think of the CEL pin as a toggling switch to ground. at a 50mA max current spec.
if S pin is not really ground try R.
OBD1 is fun, no?????? LOL !