ka24de third cylinder not working.

[nationall]

my third cylinder isnt working but getting fuel..distributor? if so how do i fix it? its my daily and im gonna get fired ha. id reallly appreciate your knowledge! thank you!

[moso]

pull the coil wire and hold it near a ground. have a friend crank the car and see if your getting a consistant spark, it should be like a beat, steady. if its not missing there then its probably you plug wires, plugs, cap, or rotor. if it is missing there then its probably your dizzy, if it is steady but really weak its either your coil or your ignitor.

[thomas.cena09]

Go to the mechanic and get it solved.Prefer the trained mechanics only.

[nationall]

pull the coil wire and hold it near a ground. have a friend crank the car and see if your getting a consistant spark, it should be like a beat, steady. if its not missing there then its probably you plug wires, plugs, cap, or rotor. if it is missing there then its probably your dizzy, if it is steady but really weak its either your coil or your ignitor.

it is an obd2 engine converted to obd1. i put the dizzy from my old obd1 ka into the new transplant along with the obd1 intake manifold. im getting spark but i didnt see it my friend did. i was turning the car over. ive changed the plug wires and the rotor on the dizzy..nothing. i have also changed the plugs..ive rewired the third injector wires and am getting constant juice.i have allllsooo replaced the injector. could it still b the dizzy if im getting good spark to all other cylinders?

[tatted0891]

it could still be the dizzy. Is the injector firing?It fires on a constant beat just like the spark plug.

[nationall]

injector wires are getting power and the spark plug is wet with fuel..i also changed the injector with one i know works anyway.. i am also getting spark ..im thinking ecu or dizzy..ive tried everything else.maybe a new wiring harness...

[moso]

if it only started acting up after you messed with the injector its possible the injector is leaking fuel out from arround the lower oring, overfueling and quenching your spark. you can check the cas in the dizzy by removing the dizzy, key on and rotate the dizzy by hand, you can hear the injectors fire one by one as you turn it. if thay do its good.

[nationall]

no, it was an attemp in fixing the problem..this is driving me nuts..ive ordered an ecu and am praying it will b ok. someone else had the same problem.. they replaced their dizzy plugs wires injectors everything.still had a dead cylinder..he finally put an ecu in and it was fine...i can only pray.

[lumski240]

no, it was an attemp in fixing the problem..this is driving me nuts..ive ordered an ecu and am praying it will b ok. someone else had the same problem.. they replaced their dizzy plugs wires injectors everything.still had a dead cylinder..he finally put an ecu in and it was fine...i can only pray.

or put your bible away and pick up a wrench lol

[nationall]

i havent put the wrench down..its becomming a problem..and extremely frustrating..

[triple r]

im with moso.......make sure th elittle yellow-orange plastic piece on the bottom of the injector is good, or else it will cause fuel to spray on the plug and foul it out. and theyres your dead cylinder

[wrightme43]

In order have you verified that number three is firing? I.E. remove the wire from the cyl, install a plug in the wire and watch it spark with a nice clean blue/white crisp spark?

If it is firing, have you verified that #3 is getting compression?

If it is firing and getting compression have you verifed that it is getting injector pulse? Using a mulitimeter or a injector pulse tester on the injector harness?

If it is firing, compressing, and getting pulse, have you ohmed the injector. It should be 11 ohms.

If you compress air, inject fuel at close to the right mixture, and have a spark the cyl will fire.

One of these things is not happening. Eliminate them in order and you will have your answer.

Hope it helps.

[nationall]

im about ready to hrow this car in the gutter! im getting spark. have compression, ive changed three injectors, two wiring harnesses, two dizzys, if it were the ignitor i feel that none of the plugs would spark. oh and ive tried two different mafs. the only thing i havent tried is the ecu. im too afraid to get one cuz if it doesnt work im gonna go ballistic. ive been tryin to fix it for a month now. pleeease

[moso]

if your injector is firing and the spark plug works in the open air than you wiring harness is fine and so is your ecu. if your ecu were bad than your injector would either not fire (most likely) or it would stay open and flood the cyl with tons of fuel and you would notice that when your motor locked up because you cant compress a cyl full of gas, or you would get no spark at all. its more than likely your ignitor. i might change the coil first because its hella cheaper but i think your ignitor is failing and sending a weak spark signal, this combined with either high plug wire resistance or a fouled or failing plug is causing you to get a no spark condition under compression. just my 0.02

[nationall]

the ignitor can just have an affect on one cylinder? and this all happened after i put another ka24de into it.

[moso]

well, its the only thing that comes to mind. unless your swap was done incorrectly. i see you have changed all your ignition components except the cap, coil, and ignitor. that leaves a short list. you are using the correct ecu, right? i dont really see you changing the injector out with another bad injector. have you removed the fuel rail from the intake manifold just to make sure the injector is seated right. thay can look ok from the top side and piss gas all over the place underneath without you knowing. you can also crank the car with the fuel rail off and see your injectors pulse (great way to check function). seriously i think your overlooking something out of frustration, calm down and look at every part, closely. its one of three things; not enough or improperly timed spark; too much or not enough fuel; or poor compression.

[nationall]

yeah for sure. ive chilled out a lot..it helps..ive bought a new cap and rotor today. im gonna put them on and well see. thank you soo much for your help momo. i started this knowing nothing and now i can fix any problem but the one i have haha.

[nationall]

well, its the only thing that comes to mind. unless your swap was done incorrectly. i see you have changed all your ignition components except the cap, coil, and ignitor. that leaves a short list. you are using the correct ecu, right? i dont really see you changing the injector out with another bad injector. have you removed the fuel rail from the intake manifold just to make sure the injector is seated right. thay can look ok from the top side and piss gas all over the place underneath without you knowing. you can also crank the car with the fuel rail off and see your injectors pulse (great way to check function). seriously i think your overlooking something out of frustration, calm down and look at every part, closely. its one of three things; not enough or improperly timed spark; too much or not enough fuel; or poor compression.

well you wur right!!!! i calmed down. removed the fuel rail and turned key. all worked except three. i then switched two and three injector wires and three worked. ruling out the injector. ive used two wiring harnesses so it must b the ecu.