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Ignition problems

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Godless

10+ Year Contributor
148
0
Jan 30, 2009
Regina,
I recently swapped the motor in my car. Straight 7 bolt to 7 bolt. Shortly after I had the coil pack blow out of the car. Took the coil pack off the old motor and installed it on the new one. Ran fine for about a week then I had the same problem. Now I'm pretty sure I have to replace the coil pack with a new one but I'm not sure which one to replace (2 plugs on each coil, mounted together) The parts are sold individually and are fairly pricey. I checked all the spark plugs and not one arcs against a ground. Looked on here and found that you can test the resistance in the coil packs and got a reading of 13.3k ohms. The thing is i got this reading on both the old coil pack and the one I installed later on. Right now i'm completely stumped as to what I have to do. If anyone can help please do, I will give more information if needed.
 
Man do i hate electrical diag... I had some ignition issues a while back. questions for you. how;s the drivability of the car? does it stumble badly under load? do symptoms increase as the engine comes up to temp? I had to replace my wires to fix my issue (evident by my description of symptoms), while i was at it i got new plugs, and later found my coil pack was arcing bad under load, so i replaced that too. did a re-set of base timing and idle (which may have been wrong at first anyway), and so far so good. Bottom line, I thought that boost leak was the culprit, but the horrible stuttering on hard acceloration turned out to be loss of spark intermittently. But i did also fix a large boost leak at the BOV.
 
Spark issues can be a lot of things. CAS which is not common for a 97 unless the motor you swapped in was a 95-96 then that CAS in the cam gear is one worthless turd and a pain to get to. Also your power transistor which is on the intake manifold could have gone bad also along with your Crank sensor. Check all those things. Odds that both coils went bad at once is very unlikely!
 
I dont see how that it worked when I swapped the coils then. When it happened the first time all I did was put the coil off my old motor on and it ran fine. I didn't change the power transistor or anything else. And yes the motor is out of a 1995 car.
 
Yeah like stated above I would check all my ignition com. Then I would try a good known ecu as this is a easy test.
 
i should have asked, but didn't quite see your statement till just now, you have no spark at all? Test the power transistor with a multi meter to make sure it's still good, if it goes out, i thnk there's a chance you have no spark at all. I can scan in a copy of the test from my manual if you need it.
 
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