Coil Pack Question

[uberstrafe]

Hey guys, I have had my talon in storage while I was at school and when I came back the car wouldnt start.

I narrowed it down to the coil pack and transitor pack. I got both those pieces out and check the coil packs resistance one the primary charge system and the secondary charge system. The secondary was with in specs, but the primary had twice the resistance than it was suppose to have according to the manual (1.4-1.3 ohms was the reading i got from the multimeter). So I was just checking to see if I am correct in thinking that the coil pack is fried. Also is there an easy way to check the transistor pack? The manual says to use a analog circut tester and all I got is a multimeter.

Oh and one more thing, is there an easier place to mount the coil pack, getting it out from under the intake was not much fun. Any help would be great thanks guys!

 

[uberstrafe]

Anybody out there that can help me out???

 

[zippyshoe]

I was curious how you narrowed-down your problem to the either the coil pack or transistor pack? Are you finding that one or more spark plugs are not firing? If this is the case and you've already confirmed that your plugs and plug wires are good, then a faulty coil pack could be the culprit. To double-check your coil pack primary resistance measurement, you may want to first short together the leads of your multimeter to check the resistance of the leads themselves. Subtract this value from what you measure at the coil pack primary. This will give you a more accurate measurement for these low resistance values. If you still get a result that is out of spec, you may want to try replacing the coil pack first.

I'm not too familiar with the 1G transistor pack, but it looks like to test the 2G transistor pack, you will also need a 1.5-volt supply - it looks to be a bit more difficult to test than the coilpack. Hope this helps you out!

 

[uberstrafe]

Thanks, ya I pulled out a plug with the wire attached and tried to get it to arc across to the block and nothing was going. What did you mean by shorting out the multimeter leads together? I got ahold of a new coil pack and transistor pack for cheap so Im just gonna replace em both seeing they both have about 120K miles on em. Thanks again for the help!

 

[zippyshoe]

I hope I helped you. It sounds like you are taking a logical next step by suspecting a faulty coil pack and/or transistor pack as long as you have already verified that your spark plugs and spark plug wires are good. Hopefully replacing these two parts will fix the problem.

Typical multimeters may be somewhat less accurate when attempting to measure low resistance values (on the order of a few ohms). At these low resistances, you may have to take the resistance of your meter's leads into account. By setting your meter to measure resistance (ohms) and shorting the two leads together, you are allowing the meter to measure the resistance of its own leads. Then by subtracting this value from your measurements, you will get more accurate results. For example, lets say you find that the resistance of the meter leads is 0.1 ohm when you short them together. Now you go and take a resistance measurement with your meter and the meter displays 2.0 ohms. In reality, the resistance you are measuring is 2.0 - 0.1 = 1.9 ohms. Hope this answers your question. Good luck in resolving the problem!

 

[uberstrafe]

thanks man didnt think of that at all! thanks again for the help!

 

[2gGSX]

This thread should help: http://www.dsmtuners.com/forums/showthread.php?t=218722&highlight=coil+pack+resistance
It looks like your resistance is a little higher than spec, but nothing too far off.