2G Help! Bad transistor or coil packs?

[trillatl]

I have a 95 eagle talon tsi with a 92 motor in it. I've been rebuilding this car for the past year.

Baby steps but ever since I got the car I could never rev past 4k in neutral. But when the car is moving it revs to 7100 easy. It always had a code saying short circuit. Plugs are new, spark plug wires are new. No boost leaks, my power seats work, ignition is beeping, starter works, no windows, no cluster gauges or boost/voltage gauges, no radio!

I've been reading post on this topic for awhile now and my issue seems to be a mix for everything. Keep in mind I just did a head swap but this happened before I did the head swap. Grounds are good. Starting to think that maybe its a bad transistor or coils. I'm sure they have never been changed on this motor. Any ideas?

Thanks

 

[kleenf4i]

T check fuses. Also we would need to know more about the swap. Was it a direct swap? Did you swap the ECU? And did you swap the resistor pack with the injectors. Did you use the 1g coil pack?

One thing I don't know about ifs weather the speed sensor is compatible with the 2g cluster, that may be the issue right there.

 

[jpmxrider489]

When I had a bad transistor, it didn't even try to start at all. Can you test it with a meter to see if its getting juice. If there is a bad coil, it normal is a misfire. When you rev in neutral, does it want to go higher or is it pretty consistent where it stops? Maybe some rev limiter?

 

[trillatl]

The car already has a 92 motor in it when I got it. The only thing I changed major was the cylinder head and it was just like the one I took off, I believe a 1g head with the bigger intake ports,

I'm going to check my coil packs tonight when I get home. I don't wanna pay a shop 140 for 2 hours of labor just to figure this out for me and it be something so simple! Fuses are all good.

 

[trillatl]

In other news, I tested the coil packs and I got a 1.0 on both of them. Guess I'll start there. I'm pretty sure These are the ones that came with the car.

 

[Diamond Star Werks]

ok since you know nothing about electronics, which is apparent heres the break down. the resistor box is transduced current to make an ignition.Therego, igniter. This would not be possible without first changing the current from the resistors, which picks up the signal from the ignition. Now your saying " smart ass" well thanks., but no. Do you not realize that Honda turbo fans use these "boxes"? More than 80% of them do not understand the logic behind it but know they cannot use DSM parts without it. So, thats al I have I hope you fix your issue since you want to bash help.

This is not the place for anyone to be trying to show off there "smarts". Its a power transistor. Thats what Mitsubishi made it to be. Nobody cars about technicalities. None of you are engineers.

When at the parts store or dealer or junkyard and you want the correct part your going to ask for a power transistor.

And for the record it is a transistor. It does more than an ignitor alone. you both should read the meaning of what a power transistor really is and does.

None of the bickering about what it actually is technically went anywhere. Please keep on topic. Thanks.

 

[trillatl]

This is not the place for anyone to be trying to show off there "smarts". Its a power transistor. Thats what Mitsubishi made it to be. Nobody cars about technicalities. None of you are engineers.

When at the parts store or dealer or junkyard and you want the correct part your going to ask for a power transistor.

And for the record it is a transistor. It does more than an ignitor alone. you both should read the meaning of what a power transistor really is and does.

None of the bickering about what it actually is technically went anywhere. Please keep on topic. Thanks.

I'm sorry if I came off in a bad way. You are right i'm by far an engineer... But I can read and on the part it clearly says transistor ..

But back on topic i've been rebuilding this car for a long time. Last time I tested the coils they were out of spec but the car would still start and not run part 4k netural. Now its cold outside car will not start at all . I have a new set on the way I will let you guys know what happens...

 

[trillatl]

Well the coils tested in spec but I replaced them anyways. Found a pair very cheap. The primary side is fine. No change I'll be testing the PTU/2nd side when I get off of work tonight. If thats not it them i'm at a loss... And just to update the car will not turn on at all now. It will start for like 1 sec and stall.

 

[Kruger]

So you have no power to your radio? windows? or gauges?

 

[luv2rallye]

How to test the power transistor (some auto stores refer to it as the ignitor if you go get one):http://www.dsmtuners.com/forums/articles-electrical-wiring/229419-how-test-power-transistors.html

 

[Twinturbo120]

Do you have a spare ecu laying around? If it isn't the transistor or coil pack, the ecu might be another culprit.

 

[travieso209pjr]

i had that happen to me a couple days ago car was running fine and i was checking all my conections and some how i shorted something out and lost all power to the whole car. check all ## fuses in the engine bay even the big square ones usually the one next to the one for the starter that should give u power to all you car

 

[trillatl]

So you have no power to your radio? windows? or gauges?

Yes I have power to all of them...

Do you have a spare ecu laying around? If it isn't the transistor or coil pack, the ecu might be another culprit.

No but I can get my hands on one... This is really grinding my gears... I see all these topics about this and cant find one thats resovled...

Ok new coils and new transistor/ICM... Same deal. Only thing left is the ECU or the Piggy back.

i had that happen to me a couple days ago car was running fine and i was checking all my conections and some how i shorted something out and lost all power to the whole car. check all ## fuses in the engine bay even the big square ones usually the one next to the one for the starter that should give u power to all you car

Ive been through this one already ... Ignition is rewired and i'm getting power to everything...

 

[trillatl]

How to test the power transistor (some auto stores refer to it as the ignitor if you go get one):http://www.dsmtuners.com/forums/articles-electrical-wiring/229419-how-test-power-transistors.html

Good info... Thanks, but I took one off of my friends car and and he plugged mine in and they both worked ...

 

[coop1985]

have you checked your alternator fuse its 80A on a 1g believe its a 100A on 2g I had the same problem as far as the windows, radio, basically interior stuff. The fuse looked good but once i replaced it everything worked again.

 

[neeley67]

Was this resolved I am having the exact issue?

 

[97gsxmod]

Having same issue as well, and found a few similar threads but all were unresolved

 

[Diamond Star Werks]

Having same issue as well, and found a few similar threads but all were unresolved

What exactly is your car doing? Is it throwing any codes? Are you running ecmlink?

 

[steve]

What exactly is your car doing? Is it throwing any codes? Are you running ecmlink?

https://www.dsmtuners.com/threads/engine-issues.545947/

Lets keep the discussion over in that thread. This one is dead and unless @trillatl comes back to update it should stay dead.