2G No spark coil pack hot to the touch

[spooln4fun]

Alright I searched and came up with this thread
http://www.dsmtuners.com/forums/showthread.php?t=262336&highlight=coil+pack+hot

this is the same problem I am haveing. any idea where the MPI relay is on a 2g? have not looked or if someone else has another suggestion as to what my problem may be?

Edit- Car is a 96 talon TSI, with a 95 motor we just installed

 

[KazooGS-T]

That link you posted was for a 1st generation talon/eclipse that has a 4g63. Completely different setup. How are you sure that you do not have spark? Did you redo timing on the "new" motor you put in? Have you checked to make sure that you are getting fuel before you are asking about spark? Some more detailed information on the situation will be very helpful.

 

[spooln4fun]

Well this is for the 96 Talon TSI as in the post i stated and has the 4g63 so roughly same set up. But yes timing was on, and getting fuel to the cylinders, and the coil pack is hot to the touch after turning the key for a few moments

 

[KazooGS-T]

Is it possible that you have a bad CAS, or that you happened to not plug all of your sensors back in? The coil should get warm, from the power going to it, but hot? Pull your plug wires out of the cylinders, and have someone start the car and see if you are getting spark. I mean leave the wires on the plugs, but pull up enough to see if you can see or hear the spark.

 

[FlatBlackTerror]

Is it possible that you have a bad CAS, or that you happened to not plug all of your sensors back in? The coil should get warm, from the power going to it, but hot? Pull your plug wires out of the cylinders, and have someone start the car and see if you are getting spark. I mean leave the wires on the plugs, but pull up enough to see if you can see or hear the spark.

sounds like your coil is building power but not releashing it. Check the switch wire on teh coil pack back to the ecu and make sure its connected up. if the coil gets power and isnt releasing it, it builds up heat and sometimes will explode.

 

[spooln4fun]

The coil pack is getting power(we checked the plug from the harness that plugs in to the coil pack, but its not releasing it.) We pulled all the plug wires out one at a time to see if they would spark and they did nothing at all.

sounds like your coil is building power but not releashing it. Check the switch wire on teh coil pack back to the ecu and make sure its connected up. if the coil gets power and isnt releasing it, it builds up heat and sometimes will explode.

Would this be the symptoms of a bad coil pack and its time for a new one?

 

[Locke]

There is a short in your coil. Test for it.

sounds like your coil is building power but not releashing it. Check the switch wire on teh coil pack back to the ecu and make sure its connected up. if the coil gets power and isnt releasing it, it builds up heat and sometimes will explode.

Only on capacitive discharge ignitions. Our vehicles use transformer coil ignitions.

 

[spooln4fun]

I know our firing order is 4123 and on the coil pack 4 and 1, are one pack and 2 and 3 are one pack only where wires 4 and 1 plug in our getting hot and other two are nothing.

How do i check the actual coil pack its self? or just get another one and go from there?

 

[spooln4fun]

Would it be wise to check to make sure i dont have my coolant temp sensor hooked up backwards? I have heard if this is backwards it will cause the car to not start since it goes straight to the ECU

 

[Noahrieke]

Would it be wise to check to make sure i dont have my coolant temp sensor hooked up backwards? I have heard if this is backwards it will cause the car to not start since it goes straight to the ECU

Reviving this thread! Was this ever resolved I’m having the same problem..

 

[steve]

Reviving this thread! Was this ever resolved I’m having the same problem..

If you are going to necro a 13 year old thread it's up to you to tell us what have you done so far? Heck that's a requirement for a new thread too...

 

[Noahrieke]

If you are going to necro a 13 year old thread it's up to you to tell us what have you done so far? Heck that's a requirement for a new thread too...

I mean like I was just askin the original person is still active. But I’m having the same issue! I have fuel, compression but no spark and my coil packs get real hot

 

[steve]

So have you checked the wiring from the coils to the power transistor and from there to the ECU making sure that you have continuity between each point and that they pulse when you're cranking the engine?

 

[Noahrieke]

So have you checked the wiring from the coils to the power transistor and from there to the ECU making sure that you have continuity between each point and that they pulse when you're cranking the engine?

I’ll do that today! It’s only one of my coil packs as well. In the photo attached it’s the one on the bottom

 

[steve]

What happened to your connector, I see them in your other thread? I
I also don't see the capacitor for the coil pack that should be connected to the power and engine ground.
Where did that red wire come from?

 

[Noahrieke]

What happened to your connector, I see them in your other thread? I
I also don't see the capacitor for the coil pack that should be connected to the power and engine ground.
Where did that red wire come from?

Sorry for the late response been working a lot! Connector is plugged in it’s just out of the photo and when I bought this car awhile ago these coil packs never had a capacitor and was wired very oddly as you can see in the photo but it’s been almost a year and I’ve never had any problem with them. I rewired them the same way tonight and cleaned it up a bit and now the coil doesn’t heat up at all so fixed that problem I think? also I haven’t been able to check continuity because my dad has been borrowing my meter and I haven’t been able to get it back from him since we both work all the time I never see him. So still working on that part as well I will update you when I get the meter from him and check continuity

 

[Noahrieke]

Update on the problem at hand: had a little bit of time tonight to go and recheck and mess with some of the stuff on the car. I hooked up an OBD2 ready on it to see if I was missing something but come to find out there’s no power at the port so there’s a new fun problem-_- so started looking around the engine bay and realized that my CAS and coil pack connectors were plugged into each other’s connectors so I swapped them and wow shocker finally got somewhere but still didn’t start.. it would crank then pop then crank then pop etc and then the popping stopped and it became a crank with a die down then back to normal crank I’ll attach a video! Any ideas on why that might be happening?