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Osmar
10-14-2010, 01:18 AM
It wont run properly
cilinder #3 ist firing
i took the wires out 1 at the
time while car was runing
and #3 cilinder won't do anything.


it comes and goes even when
im in the high way. some times
it just loses power and sounds
like wrx

ILoveMyRHS13
10-14-2010, 01:19 AM
Good work, Copernicus.

Make sure it's getting fuel AND spark to all 4 cylinders.

theslows13
10-14-2010, 01:25 AM
bad injector. callin it now

when you pulled #3 wire, was it still tryin to arc to the plug as you removed it? if so, you got spark.

jdmjap808
10-14-2010, 01:26 AM
change your fuel filter and flush out or buy new injectors.. Oh add some sea foam, it should help out a bit

ChiSleepyEyes
10-14-2010, 01:27 AM
Injector hands down

ILoveMyRHS13
10-14-2010, 01:28 AM
Yup, my car killed injector #3 last year. It's a common problem.

Osmar
10-14-2010, 01:32 AM
I took the wire of cilinder#3 an it
was runing the same

Ph0king
10-14-2010, 01:48 AM
its probably your Distributor rotor and cap. That was the source of my problem when I had that.

S13project
10-14-2010, 01:52 AM
when i got the boxer sound it was due to a wire backing out of one of the injector plugs. re-pinned that wire and ran clean

chetacheese
10-14-2010, 01:59 AM
injector


+1

Perfect Balance
10-14-2010, 04:38 PM
I'm going with injector as well. Had to replace mine last year as well.

besTint
10-14-2010, 04:42 PM
is this a SR? KA? if it's a SR, i say bad coilpack.

slomar91
10-14-2010, 04:55 PM
is this a SR? KA? if it's a SR, i say bad coilpack.

I'm assuming its KA since he said he pulled spark plug wires. Possibilities: spark plugs, spark plug wires, fuel injector, or a problem i personally experienced: fuel injector harness. Try wiggling the clip that goes to that injector while its running and if the idles jumps it could be that. Take the clip off and inspect it for any corrosion or a burnt look

Marcus
10-14-2010, 06:30 PM
check to see if the spark plugs are all the way in

zylvia213
10-14-2010, 06:37 PM
I say injector too...

SR20Driftking4lyf
10-15-2010, 08:24 AM
I had a similar problem prior to doing my swap and had a bad injector on the KA, I would start there for sure.

ElmStormer
10-15-2010, 08:38 AM
Going with injector also.

240sx123$
10-15-2010, 09:17 AM
One more vote for injector here.

If not that, then its definitely the muffler bearings.

iamtheyi
10-15-2010, 01:31 PM
lol most people that have this problem it's caues of the injector.

kalypso123
10-15-2010, 10:39 PM
could be a loose or damaged MAF wire.

but bad injector or coil pack sounds right.

:0)

Mangudai
10-15-2010, 11:18 PM
You could test injector #3 with a multimeter on ohms or get a long screwdriver and put the metal end directly on the injector and listen to see if you can hear it cycling.

lflkajfj12123
10-15-2010, 11:24 PM
#3 injector

super common problem

had to do it twice in 6 months

locoluna825
10-15-2010, 11:27 PM
^ With him on that one. Try a Noid Light. Ka hanresses connectors like to rot out and turn green. I wilgled my connectors on the injectors and would affect the idle. I had to buy all new EV1 style connectors and solder them into my harness to get rid of that. Now im having trouble with one of my exhuast camshaft rockers. when The hydrolic tappet smashes down on me, The car sounds just like a "WRX" lol

speedracer2169
10-15-2010, 11:34 PM
I'm having a very similar issue. It usually only does it when there is a lot of moisture in the air like when it rains. I can smell gas coming out of the exhaust while it's misfiring so I'm assuming its an ignition or maf problem or maybe egr but I havent had time to diagnose let alone where to start. Any ideas?

omgRWDgoodness!
10-15-2010, 11:35 PM
Or maybe he's just ***king with all of us and secretly has an EJ in there...

1jz_240
10-15-2010, 11:45 PM
im having the same problem! except mine is on #4. does it matter which one? because it did it most of the day and then BAM it started working fine again. injector?

locoluna825
10-16-2010, 12:21 AM
^either that or its the harness.

Mangudai
10-16-2010, 12:57 AM
Didnt know this was such a common problem? Or maybe its because these cars are getting older and older..not sure. I think one of mine is stuck open as my fuel economy is in the toilet but I'll be taking care of that soon.

rob22
10-16-2010, 02:36 AM
i hate ka injectors..

S-Nation S13
10-16-2010, 03:37 AM
many of you guys are saying bad injector, but what about bad injector o-rings? mine failed and sounded like a wrx as well

lflkajfj12123
10-16-2010, 07:22 AM
yeah the injectors get stuck open

locoluna825
10-16-2010, 03:49 PM
Its the style of harness plug on the injector. and the faxt that there 20 years old. The EV1 plug is a piece of shit. It doesnt seal well at all. SOHC have them everywhere ont he wiring harness. and its almost garunteed if you pop one of and look inside of it, its green.

Tantwoforty
10-16-2010, 04:47 PM
ha my car did this.
it dumped so much fuel and the timing was so off it shot like 5 foot flames all the way home.
wich was cool as shit, sept it toasted the packing in my rez/muffler.. so after that the car sounded loud and awful..
gg hks hi power... lol

replace the injector way back when this happend to me when my ka was n/a i got a bunch of pocket injectors from pick a aprt off 240 ka's and altama ka's and used the best looking ones... lol replace the ones you feel the need to replace and replace both orings on all 4 injectors.
get new plugs.
and for kicks, a new cap and rotor.
check your ign timing
and change your oil.
happy motoring :)