Only runs wide open

You reported that most of the items I would've suggested, you have checked...
Good job.
A couple more things:

• Replace fuel filter, it's in the gas tank
• Check and clean the Spark Arrestor screen at muffler, when they plug up, it's a major restriction to exhaust gas flow
• And check and adjust High/Low screws at carburetor, video attached.
• And clean or install rebuild kit for carburetor

Good luck...

One more...

there is another fuse at the back of the radio , will need to remove the radio to replace the fuse

one more anony post, making help hard if you have 2 or more post.
see? why do that?
why guess? why not use a real book on topic
well if any engine stalls, the CEL glows.
the CEL glows for the stall self tests. it glows telling you
the ECU is ok and has 12vdc power.
get the schematic for your car.
and find out why power is lost the EFI system. this is not the nebulas inertia switch,
what does SEEM mean.??? using a voltmeter works, looking and guessing not. use a voltmeter to find where power is lost.
your not stumped,
you dont have a meter
and dont have the book
so log in the alldata.com

btw2: no engine size stated, and guess what.
the schematic for all parts are different. fuel and electric.
if you go on line
the ask,year, make ,model and ENGINE.
can fix any engine, until you know what is there. impossible.
(unless you use BASICS for OTTO Cycle engines)
lets do that. for fun
got spark? no
got CEL ,no
Got power to ECU , no.
so you use the voltmeter to see where power is lost in this power feed system. (its a tree construct)

now a random answer, 6 cylinder engine.
Fuse C8 or F3 blown.
engine, and ECM F3 powers the whole ECU.(PCM)
main relay output wires dead. red/blue wires. killing all spark and fuel.
fuse C10 kills he CEL lamp dead.
is uses a volt meter, (walfart for $10?)
and both sides of these fuses read 12vdc to ground.
if not fuse is blow or input to this box is bad.
the engine bay fuse box runs the whole cab box.
do the head lights work.
are there other things dead , not stated?

one of these fuses or relay is dead.
or the dash lamp fuse blew, yous said they were dead
you key on, the CEL glows power to the PCM is below right.
if the fuse is dead both sides you blew the eng.bay main fuse.

yes check fuses also check the pos+ and neg- battery cables make sure they are clean and put them back on nice and snug

hth th rth th th

My friend had same problem so i waited till fuse blew an what i was doing when it blew the nutrel safety was getting hot replaced it now he is good to go

ok slow down, it stalls, that is all we need, no need guess.
and tune up don, but you skipped the fuel filter? and air filter,?

STALLS 101.
1: lost 12vdc to EFI system. lost elect. power. easy to test , easy to see. you can attach a DMM set to 12v at the IGN output wire.
and see if it drops to zero as engine dies. sure can.

2: you could , check for spark at death, got spark
and work that path if spark fails.
3: lost fueling, (sparks soaked in fuel x 4? ) then its flooding
if dry spark tips x4 then lost fueling , so try test fuel.

you failed to say, is this a hard fail , i t dont run now.
or is always random... just a lil hint.
assuming power is hot at all EFI fuses.
then fails only 3 ways,
1: lost compression hot (if solid lifters, lash never set)
2: lost spark'
3: lost fuel or flooding.

if flooding use WOT, in this super secret mode works, Wide open throttle cranking, clears floods. (ecu cuts all fuel in this mode)

what motor?
the car with a zillion names world wide. amazing it is.
huge numbers of engines and EFI types. posting the country helps.
no one ever does, but there,,, i said it. Gobsmake me....
I will post the pargraph from wiki so show the idea of just USA
"Suzuki marketed a rebadged Lacetti as the Forenza and Reno beginning in the United States in 2004-following the end of Daewoo's North American operations in 2002 and replacing the Daewoo Nubira station wagon and sedan. The Forenza/Reno falls between the Aerio (later SX4) and the now-discontinued Verona. In the territories of Guam and Northern Mariana Islands, it was sold as a Chevrolet Optra, but it was only available as a sedan.
The US model line features the 2.0 L 4-cylinder E-TEC II made by General Motors, developing a maximum power of 132 horsepower at 5600 rpm.

7 engine or more world wide, you vin code not posted.
is the first clue to asking for help or parts. for the reasons above.
A weak stab at this....
But lost engine power.
if in fact its the engine and not the transmission slipping?
eg;engine rpm rise to normal but not car speed? tranny !
is the check engine light on , key on and does it go out running?
if not , pull the scan codes now.

no power.
1: bad fuel
2: bad engine, lost compression.
3: never tuned up, bad spark, clogged fuel and air filters.
antique spark plugs?
you mean the engine runs fine at idle not the car,?

4: bad cam belt or higher mileage (unstated) chain, or related parts.
5: low fuel pressure. 30 is normal, 1 PSI , hopeless.
6: if car has a MAF, a bad MAF. (no engine stated)
7: Melted CAT converter, if in usa,but you did not disclose that.
8: EGR stuck wide open but WOT will hide this but does not.

wot means wide open throttle , in gear up a hill. say...


we fix these easy ,with simple tools.
we can do that tests.
but so far no engine type or country stated./

if serious , most here are not, post back.
most posts here are wits end. then nothing....

Pull primary cover, primary chain and clutch, then rotor from crankshaft... check Stator for shorts to ground... same thing happened to mine... now is fixed!

A mains surge may have taken out the fuse. To find the fuse, remove it from the mains, remove the outer cover and follow where the power cable enters the case. There will be a PCBoard with a fuse on it.
Always replace the fuse with one of exactly the same type and value!