91 240sx ka24de will not run...please help

[speed3]

Ok, so i am new to this site and have searched but everything i look up doesn't quite show a fix or I an not sure its the same problem.

I have a stock ka24de 5spd in my 91 240sx.
I just bought the car about a month and a half ago. It has been running fine minus a slightly high idle.

Well yesterday I noticed a coolant leak from my lower radiator hose at the thermostat housing when i went to the store. I made it home and there was coolant all over the front of the engine and front electrical connectors. I replaced the hose, cleaned the connectors best i could but now the car will not run.

It cranks fine and tries to start but once I let go of the key the car dies.
fuel is good, good spark, compression good, battery died from trying to start soo much but charging or will get new one.

maint. i've done since ive gotten the car is: spark plugs, dist. cap and rotor, all new coolant hoses (now), new heater hoses, new intake gaskets, new coolant temp sensor.

Any help will be appreciated. I just dont know if i'm overlooking something simple or stupid. just soo weird that the car was running fine and an hour later will not run.

[aznjoejustin]

coolant might be inside distributor ,that's y u can crank but no start ,

[speed3]

if it got in and dried somehow would it cause the problem?
I'll take off the cap and rotor to check. but any other ideas??

It seriously sounds like it tries to start and will almost hold idle as long as i keep the key in start position. but once i let it go the car just dies

[aznjoejustin]

coolant might be inside distributor ,or you need to adjust your distributor's rotor ,how can i explain this to you ?? set TDC (top death center )it located at crank shaft rotor,and around there you will see a pin sticking out ,just arrange the mark of crankshaft wheel to the pin .
after that open your distributor cap and set the rotor ,,, set it a little bit before spark plug number one and close the cap ,,done ,,:s101: my brother had a same problem like yours ,,he tried to tune up after he just bought the car ,sound like your car is missed fire,,am i right or wrong ? i want to know ,:keke:

[speed3]

I'll check it out.
Its just so weird that it could be the possibility of adjusting distributor when all i did was replace a coolant hose. lol.
I just hope its something stupid like that though

[aznjoejustin]

while you change your radiator hose and clean up your wires connector ,you might accidentally disconnect something ,if those thing won't fix ,, sell your car to me:2f2f: :snoop:,i though you already done a tune-up ,here is what you say ::facepalm:maint. i've done since ive gotten the car is: spark plugs, dist. cap and rotor, all new coolant hoses (now), new heater hoses, new intake gaskets, new coolant temp sensor.

[speed3]

yes I did it about 3 weeks ago. but this no start problem just started the other day with the coolant leak from lower radiator hose.

[Taylor008]

Make sure your coolant temp sensor is plugged in. Check your fuses.

[speed3]

all fuses are good. all sensors are plugged in.
coolant temp sensor had some coolant on it but cleaned and looks ok

[Taylor008]

Coolant temp sensor is supposed to have coolant on it.

If I were you I'd start looking for vacuum leaks. Sorry I couldn't be more help!

[speed3]

oh sorry i meant it had coolant on the contacts for connector from hose spraying.
Update....all my harness looks good. I am now getting a knock sensor code (34) from trying to start. Shouldn't keep it from running though.
and it seems like my spark is a little weaker at the plugs than it should be.
I have good spark out of my coil but weak spark out of distributor.
Could it be my distributor is bad or dist rotor went bad?? anyone have a theory?

[aznjoejustin]

nothing to do with knock sensor ,,adjust your distributor again ,,believe me ,,you set the rotor too far from spark point ,that's y it spark ,,but weak and can't make combustion process ,,,,please PM me after you found and solved a problem ,,i want to learn

[speed3]

OK. so fixed and cleaned all wiring, adjusted distributor....
now spark is really strong but realized that my problem is the injectors are not firing. Fuel is good up to injectors. I know they are good injectors because they are new. I took off the fuel rail and checked and they sprayed once but then are not firing again. Since i know my wiring is all good and my ecu is good it has to be the crank angle sensor in the distributor right?
I did the test and it doesnt seem to be sending the signal to the injectors. Just weird that its not setting a code for it. but then again its not running enough for the ecu to read it either.....Sound about right??
I am getting a replacement Distributor by this weekend to try and will see what happens next.

[Taylor008]

You have a KA, you have a distributor, not a CAS.

Did you test the dizzy vvoltages?

[aznjoejustin]

it's time for u to pour sr20 det in it , before u buy it ,y don't u ask ppl in a shop ? ima ask my boss on friday .

[aznjoejustin]

how can i delete the post that i already posted ?

[speed3]

You have a KA, you have a distributor, not a CAS.

Did you test the dizzy vvoltages?

CAS is part of the distributor

[airman]

Check all of your harness grounds around the engine. There's one there that if not grounded properly, you can lose spark and/or fuel!

If you get desperate and nothing else has worked, take out your ECU and check for burnt traces.

[speed3]

Check all of your harness grounds around the engine. There's one there that if not grounded properly, you can lose spark and/or fuel!

If you get desperate and nothing else has worked, take out your ECU and check for burnt traces.

which one? as my other post stated I am looking for the wiring schematic or pictures of dizzy connection and grounds because i have checked everything and it looks good to me. No breaks in wiring and everything secure.

Oh and I have 6 years technician experience on imports just not familiar with KA motors and problems yet. so you dont need to dumb things down for me if you know specific terms or fixes.

[aznjoejustin]

i already asked my boss ,, nothing wrong with your distributor or crank angle , ,don't change it ,if you had a spark ...that mean your distributor's okay , you put everything back and start again ,,let see if your engine dump a lot of fuel ( after you start a few time ,take out your spark plug and see if it wet a lot ,if it's ,,change your coolant censor . if not ,you need , to check your fuel pump relay ,, if not working ,buy my friend SR red top ...:wavey::D

[kennedy8383]

There a ground wire behind the right fuse box on the engine compartment, and sometimes rust inhabit the metal and it corroded. That what happen to mine.. I couldn't get my ka24de running because it have lost it spark somewhere. I'm taking out everything inside the engine bay and get another engine harness because it seem to be mess up and plenty of borken wire and insulator. WTF..

[speed3]

i already asked my boss ,, nothing wrong with your distributor or crank angle , ,don't change it ,if you had a spark ...that mean your distributor's okay , you put everything back and start again ,,let see if your engine dump a lot of fuel ( after you start a few time ,take out your spark plug and see if it wet a lot ,if it's ,,change your coolant censor . if not ,you need , to check your fuel pump relay ,, if not working ,buy my friend SR red top ...:wavey::D

ok like i stated before....I am not getting fuel past the injectors. From what i read, the only parts controlling the injectors are the ecu and CAS in dizzy. I have heard of the CAS going bad. CAS doesn't affect the spark so this could be my problem

I have checked the whole harness and grounds i can see....Everything looks good.

All my fuses and relays are good. and yes i know my injectors are good.

[brizanden]

theres grounds on the head right by the front radiator hose and u der the fuse box next to the intake. also check the main ground from the batt to the chassis/intake

[speed3]

Just as a final update.
I had ordered a new dizzy since I had tested and checked everything. Replaced and car started up first try.

CAS inside my Distributor had gone bad. showed no code but just wouldn't send signal to injectors.

I'm just happy my car is running again!! THANKS EVERYONE THAT TRIED TO HELP AND GIVE IDEAS ON THINGS TO CHECK.

*happy dance* :wiggle:

[240sxluver4life]

Glad its running again. Most these idiots were just shooting in the dark and don't understand that there is a cas in a dizzy.

[speed3]

It took me 2 days to narrow it down to the dizzy because I had to trace my whole harness knowing I had spots with wires exposed.
I just really didn't want to replace the dizzy. lol weird how my CAS went out so quick.

[trale]

:wiggle:http://forums.nicoclub.com/240sx-fsm-full-service-manuals-s13-s14-ka24e-ka24de-t311075.html

[aznjoejustin]

Glad its running again. Most these idiots were just shooting in the dark and don't understand that there is a cas in a dizzy. dude ,, u don't say anything until the problem already solved ,,look at yourself in the mirror and you will see who's the idiot .. :hey::blah::fruit: only you >>>

[aznjoejustin]

Wth are the Dizzy and a CAS ??

[speed3]

Dizzy: aka- Distributor
CAS: Crank Angle Sensor. which is what most forums and search related info calls it. But better known in the FSM(now that I have one to use) and on other cars as the CKPS: Crankshaft Position Sensor

[kennedy8383]

Just as a final update.
I had ordered a new dizzy since I had tested and checked everything. Replaced and car started up first try.

CAS inside my Distributor had gone bad. showed no code but just wouldn't send signal to injectors.

I'm just happy my car is running again!! THANKS EVERYONE THAT TRIED TO HELP AND GIVE IDEAS ON THINGS TO CHECK.

*happy dance* :wiggle:

.. Where did you brought your distributor because i need one too.. The dealer charging too much and it worth like arm and legs..

[aznjoejustin]

Dizzy: aka- Distributor
CAS: Crank Angle Sensor. which is what most forums and search related info calls it. But better known in the FSM(now that I have one to use) and on other cars as the CKPS: Crankshaft Position Sensor

now you made me confused than ever ..:smash: what FSM ? a Flying Spaghetti Monster ? here what i found after searched on Google: :ddog:
Flying Spaghetti Monster - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Flying_Spaghetti_Monster)

[speed3]

now you made me confused than ever ..:smash: what FSM ? a Flying Spaghetti Monster ? here what i found after searched on Google: :ddog:
Flying Spaghetti Monster - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Flying_Spaghetti_Monster)

FSM is short for Factory Service Manual