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post #1 of 8 Old 11-18-2012, 07:13 PM Thread Starter
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Spirit r/t ignition coil

ok well my car had a bad sputter problem.never figured what it was just never drove car hard after that.one day i was driving and out of nowhere i here my car knocking and my car loses power sounds like a subaru feels like its running on 2 cylinders.so i leave car on and start to pull the wires off and see how much sparks going through.first piston is weak 2nd is strong.with about 4 inches away from spark plugs it still sparks.i check first one again not even 1 in away it barely sparks.and if i start reving it up the spark cuts out and sparks erraticly.never replaced coil pack but i did change crank angle sensor.so is coil on way out or is this a computer problem.i check codes and all i get is 55.also i read somewhere about using a dodge neon coil with spliced in plug.if someone could point me to right direction that would be great.any advice would be great.
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post #2 of 8 Old 11-20-2012, 01:28 PM Thread Starter
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Re: Spirit r/t ignition coil

so is their anyway you can splice in a neon plug and use coil pack.the oem coil is 180 just trying to save some money.
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post #3 of 8 Old 11-21-2012, 06:59 AM
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Re: Spirit r/t ignition coil

I do not own a T-3 all systems operate the same.

Never hold the wire more than 1/4" from ground or you may spike the engine controller.
Invest $8.00 in an adjustable spark tester.

Before you condemn the coil verify...
1)Coil control is present at both coil drivers.
2)Ignition Wires are not open or shorted.

As far as swapping a coil from another vehicle as long as it wires/operates the same and primary resistance is the same you can swap it, anything different may/will damage the controller.

You have a 4 terminal connector with 3 wires...
Cavity #1...DB/YL Coil #2 Driver
Cavity #2...BK/GY Coil #1 Driver
Cavity #3...Not Used
Cavity #4...DG/OR ASD Power Input

Jan
1990 Daytona Shelby VNT

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post #4 of 8 Old 11-21-2012, 07:13 AM
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Re: Spirit r/t ignition coil

Primary Resistance - .52-.63
Secondary Resistance - 11,600-15,800
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post #5 of 8 Old 01-04-2013, 08:39 PM Thread Starter
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Re: Spirit r/t ignition coil

ok well after weeks sitting their i had finally decided to see whats wrong with my car.i check ignition coil and it was fine.so i did a compression test this is the result.piston #1/155psi #2/110psi #3/36psi #4/21psi.i did this with a lil warm up and 5 crank overs with wide open throttle.piston 3,4 had spark plugs covered with oil.so i pull off valve covers and only 1 valve on piston #3 was really off rocker.so i think the head is gone.i want to figure out what caused this to happen could this be the the famous i-shaft failure how can i check for the cause.please any advice will be greatly appreciated thanks.
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post #6 of 8 Old 01-04-2013, 10:17 PM
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Re: Spirit r/t ignition coil

sounds like you either had a head gasket failure or you melted some pistons.. if you run alot of boost and don't have any gauges to monitor your engine a/f ratio shame on you.
Since #3 &4 are both low on compression, I'm guessing a head gasket let go. good luck
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post #7 of 8 Old 01-04-2013, 11:41 PM Thread Starter
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Re: Spirit r/t ignition coil

well car is completely stock other than full 2.5 in mandrel bend downpipe ending to middle of car and k&n cone filter and race clutch from turbosunleashed.hoping its not block related.the reason i parked it was because of loss of power and loud knocking sound.lets see who's guess is right when i start to pull it apart.
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post #8 of 8 Old 01-22-2013, 11:56 AM
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Re: Spirit r/t ignition coil

Sounds like a head gasket, as when 2 adjacent cylinders have a blown head gasket, the compression/spark etc gets blown between the 2. Do a leak down test to verify. Pics of what you were talking about on the head?
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