1G Ignition Transistor location

[93laser1g]

can anybody tell me where the ignitoin transistor is located on a 1gb? And if it was bad would i only be getting spark in 2 cylinders? i just replaced the plugs wires and a new coil and im still only getting spark in 2 cylinders.

 

[92AWDHX40]

Under the coil pack its black, youll see a connector.Near back of timing belt area in the rear.

 

[93laser1g]

Under the coil pack its black, youll see a connector.Near back of timing belt area in the rear.

It's not connected to the coil pack's mounting bracket is it? Do you have a picture or diagram?

 

[92AWDHX40]

Ok its below it, should be a black box attached to the head in the rear, keep looking. Could be a bad ecu, or wiring, or transistor pack.

 

[19Eclipse90]

For general location: http://www.dsmtuners.com/forums/newbie-forum/395745-90-eagle-talon-tsi-fwd-turbo-no-spark.html#post152503653

A close-up of the transistor itself (3rd picture): http://www.dsmtuners.com/forums/articles-electrical-wiring/302812-1991-1994-ecu-swap-into-1990-dsm-ignition-wiring.html

 

[93laser1g]

For general location: http://www.dsmtuners.com/forums/newbie-forum/395745-90-eagle-talon-tsi-fwd-turbo-no-spark.html#post152503653

A close-up of the transistor itself (3rd picture): http://www.dsmtuners.com/forums/articles-electrical-wiring/302812-1991-1994-ecu-swap-into-1990-dsm-ignition-wiring.html

What do you test the transistor itself? or the harness?

 

[19Eclipse90]

That first link I provided you with also contains this, which is a test for the PTU itself. Read through it: http://www.dsmtuners.com/forums/articles-electrical-wiring/229419-how-test-power-transistors.html

 

[93laser1g]

That first link I provided you with also contains this, which is a test for the PTU itself. Read through it: http://www.dsmtuners.com/forums/articles-electrical-wiring/229419-how-test-power-transistors.html

Thank you i did not see that part

 

[alex209]

I had same problem 2new coils later it ended up being the ignition transistor

can anybody tell me where the ignitoin transistor is located on a 1gb? And if it was bad would i only be getting spark in 2 cylinders? i just replaced the plugs wires and a new coil and im still only getting spark in 2 cylinders.

 

[93laser1g]

I had same problem 2new coils later it ended up being the ignition transistor

i found the transistor but im having a problem getting it off is the only two bolts holding it on or are there more? is there something that has to come off first?

 

[19Eclipse90]

Three bolts.

 

[93laser1g]

Three bolts.

Okay i was wondering what was going on

Three bolts.

i did the test and 1 set was turning the light bulb on and the other side it wasnt doing anything

 

[19Eclipse90]

Good to know you've found the (a) culprit. Replace the PTU and see what happens.

 

[93laser1g]

Good to know you've found the (a) culprit. Replace the PTU and see what happens.

replaced it and the car started cranking faster but still wont start. tomorrow im going to see if im getting spark in all 4 cylinders. and im going to check for spark and then check my gap size

 

[chadjoe]

Sounds like cam or crank position sensor is bad.

 

[93laser1g]

Sounds like cam or crank position sensor is bad.

i just changed the CAS, ECU, ISC, plugs, wires, battery, coil pack and the power transistor. i think my CAS is off or it mite be gap size maybe firing order. anybody have a diagram?

 

[19Eclipse90]

http://www.dsmtuners.com/forums/articles-electrical-wiring/396699-1g-spark-plug-wiring-order.html

 

[Grizbomb1684]

Mine doin same thing ever figure out what it was??

 

[93laser1g]

Mine doin same thing ever figure out what it was??

no im working on it rite now i just spent like $500 on parts and still no start



i bought three used transistors and all of them were bad, first 1&4 weren't sparking then i put in 1 of the three i bought then 2&3 didn't spark i did this two more times but but both of them wouldnt spark in 1&4 so im thinking buy a brand new transistor? i gapped my plugs at .28 and my firing order is correct. does anybody know if the transistor would act up from being cold? and i should just be able to just drop in the transistor and ride right?