240sx dies while driving now it wont start no spark

[H00N1GAN]

Ok so long story but basically my ka24de just died while rolling slowly...now no spark noticed the ignition cont fuse was blown so replaced the fuse, didnt work so replaced the ignition coil didnt work replaced ICM didnt work cleaned battery terminals didnt work, replaced ground wire with fresh wires still no spark if anyone else has any ideas lmk there is no spark coming from the ignition coil its self...so its not rotor cap or wires or plugs there new anyway... and im definately getting fuel just no f ing spark im getting pissed if anyone can think of anything lmk motor cranks

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[Hardie]

Can only be a few things:

Battery
Ignition Switch
ECU
Power Transistor
Ignition Coil
Spark Plugs
CAS

Check all these things.

[H00N1GAN]

Can only be a few things:

Battery
Ignition Switch
ECU
Power Transistor
Ignition Coil
Spark Plugs
CAS

Check all these things.

I've done everything listed above except the battery ignition switch and ecu

Wouldnt the ignition switch being bad cause the car to not crank?
Cause she cranks hard without struggling just wont start
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[Hardie]

Sorry thats a good point. Does the tachometer needle move when cranking?

Also just remembered check Ignition Timing also.

[H00N1GAN]

Sorry thats a good point. Does the tachometer needle move when cranking?

Also just remembered check Ignition Timing also.

Nope not at all it was overheating though before so I could have melted the cam shaft positioning sensor in the distributor which could be telling the computer not to spark the engine which seems a little advanced for a car manufactured in 93 but idk...i just want it to start so i know everything is all set when i tear it apart to rebuild it

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[Hardie]

If there is no movement on the tachometer check the ignition signal circuit.

You can also run a self diagnostic on the ECU, to see if there is anything out of the ordinary.

[rwtf]

If there is no movement on the tachometer check the ignition signal circuit.

You can also run a self diagnostic on the ECU, to see if there is anything out of the ordinary.

Mine doesn't move when i start my car.:confused:

[H00N1GAN]

Will a bad CAS cut spark all together? Since my ka was overheating towards the end I'm thinking the that the CAS went since from what I read the CAS will go if the engine operates over it normal temp

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[Ibetchuwontdoit]

I'm having a very similar problem. When the car died it was low on gas and my gas gauge doesn't work very well, so I thought it just ran outta gas. After making multiple trips to the gas station with a 1 gallon can, I put 5 gallons in it, and still nothing. It tries to crank just fine, but it doesn't seem to be getting any spark. It's been a few weeks since I've messed with it but I don't recall the tach moving at all. I also tried the old trick of spraying ether into the intake incase it wasn't getting fuel for some reason, and nothing. So, it has to be lacking spark.

I have made sure all the plug wires were on tight and not damaged, I have put my finger on the end of each wire while it was being cranked and didn't get shocked (seems like I should have been), then I took the ignition module to an auto parts store and they said it tested ok. I dunno what else to check, this is my first nissan so I'm here to learn.

*edit* Keep in mind when all this happened I had only had the car for less than a week so I know very little about it's workings =\

[H00N1GAN]

I'm thinking we both have a bad CAS since they are known for going bad, assuming you checked your fuses ignition coil and your ignition control module are fine and your grounds are good...

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[Ibetchuwontdoit]

Mm, of that list I didn't check the coil other than putting my fingers on the plug wires. Also, the grounds are questionable. There was a swap done right before I owned it, and the wiring is kinda...meh. Not that I could do any better. Hoping to get time to check some of these things this weekend. I did check the fuses and I THINK the little piece I had tested was the ignition control module (on a bracket bolted to the fender well?) The ECU is brand new and I THINK the engine/ecu is from an s14. At least thats what I was told by the guy I got it from...

[H00N1GAN]

The ignition control module is on the driver side fender well in front of the strut tower behind the ignition coil


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[Unchained Jimy]

Hey guys!
Happy to see that i'm not the only one having problems with my car. I have a 240sx with a rb20det swap. Was running and finished my ride on a platform... The car is cranking, I have spark, the pump is pumping bug injectors won't work... I played with my CAS to see if injectors would click and nothing... ECU give the 55 code witch normally, everything should bee fine. :rimshot:

I will try this weekend to see if my 2 relays click on not when turning ignition on.

[H00N1GAN]

Your situation is a little different then ours

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[RedTopKA-T]

sorry to thread jack but im having a similar problem with my ka24e-t , this happened to me a couple of times..it will start and drive fine for a couple of days and then out of nowhere while driving the tachometer will start to jump around and the car dies ,sometimes it will start right back up and sometimes it wont start for a while.every other time it died it would either start right up or i would take the plugs out and clean them and then it would start right up but the last time it died it started right up and i drove straight home and shut the car off and now i cant get it to start again,it will just crank and crank but wont start. my car is lowered and i did notice some rubbing on my drivers side harness so i taped the exposed wires up and still no start.

[kennedy8383]

Probably a bad ground, ecu or ingnition switch... I heard the ignition switch common problem for 240sx but i would look into the eazy problem first..

[H00N1GAN]

Probably a bad ground, ecu or ingnition switch... I heard the ignition switch common problem for 240sx but i would look into the eazy problem first..

Yep bad ECU count four pins in from the right and you can the circuit is broken, but if anyone know what that circuit is for lmk but I'm pretty sure that's why it's not starting

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[andres_240sx]

sorry to thread jack but im having a similar problem with my ka24e-t , this happened to me a couple of times..it will start and drive fine for a couple of days and then out of nowhere while driving the tachometer will start to jump around and the car dies ,sometimes it will start right back up and sometimes it wont start for a while.every other time it died it would either start right up or i would take the plugs out and clean them and then it would start right up but the last time it died it started right up and i drove straight home and shut the car off and now i cant get it to start again,it will just crank and crank but wont start. my car is lowered and i did notice some rubbing on my drivers side harness so i taped the exposed wires up and still no start.

What size injectors. If u have to clean them to start it u might be flooding it with gas.

[H00N1GAN]

What size injectors. If u have to clean them to start it u might be flooding it with gas.

It was the ecu and the fuel pump wasn't priming either turns out

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[StigMeister]

^ ^ ^ ^ Saw this solution from a mile away lol

if the ECU is bad then it messes with the fuel pump and so it doesnt prime.
Swap out a buddy's ecu (same model ecu of course) and try and start your car.
If the car starts, its the ecu. And you'll hear the fuel pump start priming.

[H00N1GAN]

^ ^ ^ ^ Saw this solution from a mile away lol

if the ECU is bad then it messes with the fuel pump and so it doesnt prime.
Swap out a buddy's ecu (same model ecu of course) and try and start your car.
If the car starts, its the ecu. And you'll hear the fuel pump start priming.

Already got a new ecu started right up, been running great been able to focus on other stuff for the past couple weeks finally did a full ac delete and wire tuck and I just polished the whole car with meguiers swirl remover and an electric buffer came out mint ;) also did a valve cover gasket since the old one was pissing out oil

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