1G no spark

[SVT2DSM]

1992 talon tsi awd

Cylinder 4,3,2 have spark and number one doesn't. I pulled the other spark plug cables and stuck a screwdriver in them and turned the car over to see if the screwdriver would arc on anything and they did. My number 1 cylinder spark plug cable doesn't arc when I jam a screwdriver in it. The cable isn't cut and I made sure it was connected to the coil pack...does this mean the coil pack is bad? I know there's 2 of them 2 cylinders fire off each one

 

[92AWDHX40]

I would check the resistance in your coil pack for all 4 of them.

 

[ForsakenLash]

try putting one of the other wires on #1 and see if it arcs... if so the wire is bad, time for a new set, if not then its probably the coil pack

 

[MALaCasse]

I tested my coils by using a multimeter. Connected the positive lead to the coil and the negative to a ground. Put the MM in DC mode and crank/start it. Should show pretty much a constant 12-13V DC if the coil is good.

 

[SVT2DSM]

I just switched the spark plug wire from the cylinder #1 socket of the coil pack to number #3. And its still not getting a spark to #1 so its not the wire

 

[Rsawd95dsm]

Could possibly be the PTU (power transitor unit).

 

[SVT2DSM]

How so?

 

[DSM1G90]

Gonna be dumb here -- pull No.1 plug, clean it up -threads and all - and reinsert.

No. 1 could be not receiving a ground since No. 1, the spark heads to the tab from the electrode, whereas No.4 is reverse with spark jumping from tab to electrode.

Another trick is to swap plugs around, for you might have a bad plug. Also, using a timing light is to clamp on No.1 wire and see if it fires with the flash from the gun. The screwdriver trick isn't as accurate as the gun's connector picking up the current inductance from the wire itself.

Use a digital VOM to check secondary coil resistance .. it should be between 12 and 14 Kohms when you shove the probes into the 1 and 4 ports. Any different and the coil is bad and needs replacing.

Mine died on me last week. I had spark from all four, but a weak yellow spark. Tested secondaries and both were good .. primary windings went bad-resistance went south of the border which means very little current was available to give me the high voltage out of the secondaries when the primary windings current would collapse.

Ordered a new coil, installed it and now back on the road

 

[SVT2DSM]

I also just let the car run and pulled the spark plug wires I pulled 4, 3, and 2 2 at seperate time and the car tries to die. I pulled spark plug cable number 1 and the car runs the same like shit

 

[GRAVEDIGGER]

Could possibly be the PTU (power transitor unit).

It's a waste spark setup... If it is firing on 3 cylinders it's not the ptu. Cylinders 1and 4 get the signal to fire together and cylinders 2 and 3 fire together as far as the ptu is concerned. If the ptu is bad you will lose spark on the 2 accompanying cylinders together. It sounds like a bad coil pack to me. I'm not sure you are testing it correctly. Here's how it should be done.

http://www.dsmtuners.com/forums/new...suring-coil-pack-correctly.html#post152928590