Help: Bad coils

[KzA]

that makes sense.. thanks for the heads up...

Now this makes sense why my battery died on me last month while listening to the radio w/ the car off while changing my tires... it wasnt more then 40mins and it didnt have the juice to turn over. Would this contribute to the rapid battery drain??

that i really can't tell you..but then again arent you NOT wired for ignition? could be wrong..if you are, then this might contribute...I would really suggest NOT leaving the keys in the on position w/o the car on for any length of time

 

[jaje]

that i really can't tell you..but then again arent you NOT wired for ignition? could be wrong..if you are, then this might contribute...I would really suggest NOT leaving the keys in the on position w/o the car on for any length of time

Andy Wagner installed both of our MPI units. Andy had little direction (small 100k text email with no pics or even step by step instructions) from MPI on how to do it but due to his experience he did it correctly

 

[KzA]

Andy Wagner installed both of our MPI units. Andy had little direction (small 100k text email with no pics or even step by step instructions) from MPI on how to do it but due to his experience he did it correctly

you really donyt need any pics or step by step instructions...only what wire goes to what pin number..i wired it myself..twice..with only a ecu diagram with some mpittuner wires notes on the side..

 

[Little Beavis]

They are working on the problem, but as some may have read in a different thread, there were concerns about the MPI not getitng power to the coils "soon enough". There is no problem with getting power there. Basically the coils kind of "charge" and the issue is that when the engine isn't running and the key is on. . .they charge A LOT! Hence. . .cook, cook. . .COOK! I love the smell of burnt plastic in the morning!

There are some ideas going around on how to fix it. Hopefully it will be done soon, but right now the key is to not leave the key in the "on" position when the car isn't running. Depending upon how it is wired up this could apply to the "acc" position too, but hopefully people aren't getting power to the MPI when it is in that position.

Does it suck to fry coils? Yeah, but a complete new set with boots is less that $30. We'll figure something out soon enough, too bad I'm not an "electrical" kind of guy. This one is a little over my skills, but I have some ideas too.

 

[John at J&S]

Older systems used an external ignition module, or igniter. Some igniters use fins to keep the transistors cool.

These coils have the ignition transistor built inside, and there are no fins, so it is very easy to damage the igntion transistor.

It only takes 3 milliseconds to charge the coils. Anything longer than a few seconds, and damage can occur.