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Discussion Starter · #1 ·
I was driving my car and when i hit full boost my car started to make a weird noise and it wouldnt boost after that and the check engine light started flashing. The exhaust started making a weird noise and it wouldnt excelerate hardly at all. I was close to home so i just went 10mph and parked it because i was scared it could do damage. i started by pulling off the back of each coil pack to see if one wouldnt change the engine noise so i would know which one it is but they all changed the engine noise. do i have to have a obd II reader to check which cylinder is misfiring?? thxx
 

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Re: bad coil pack im guessing need help (chase1.8tjetta)

i would just change all of your ignition coils maybe more than one went they aare known to be faulty get the type e bolt down ones there great and might as well do your spark plugs and bam problem fixed good to go http://****************.com/smile/emthup.gif
 

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Re: bad coil pack im guessing need help (chase1.8tjetta)

Quote, originally posted by chase1.8tjetta »
i started by pulling off the back of each coil pack to see if one wouldnt change the engine noise so i would know which one it is but they all changed the engine noise. do i have to have a obd II reader to check which cylinder is misfiring?? thxx

Great first test for bad coils, though from the results it seems your misfire is more due to a spark plug issue than a coil issue. See the FAQ for replacement spark plug recommendations and gaping.
 

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Re: (chase1.8tjetta)

Quote, originally posted by chase1.8tjetta »
thx alot guys. im going to take it to my mechanic now and if its a coil pack im getting ecs stg 1 e version. im hoping its something small to fix.
you should do it yourself its take 15 mins max took me 5 its not hard you unlpug them pull the ignition coil out pop the new one in in your case put gasket on and bolt it to the valve cover you will save money.
 

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Discussion Starter · #7 ·
i bought 4 new sti bolt downs, it runs good now. i just need to do some fine tuning and then i will be happy. i have apr ko4 software and ever since i got it when i really punch it my car bogs down a lil bit. im going to get some diagnostics and hopefully see whats wrong.
 

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Well, for me, STI = Subaru... So, that was the reason I wanted you to elaborate. But, since it's a brand, that pretty much sums it up http://****************.com/smile/emthup.gif
Thanks!
 
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