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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 11-08-2021, 01:25 PM   #29
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Originally Posted by GJR726WY View Post
This thread appears to have puttered out, but I just replaced my spark plugs and coil packs this weekend on my 2013 BRZ using the IP Quad sparks. Car seems to have a pretty large reduction in throttle response and overall power, I am not getting any CELs though, was wondering if anyone else had experienced similar results.
Let me know if you coil packs go bad. I was chasing a strange misfire and after doing a bunch of diagnosis that came back inconclusive, I swapped back to OEM and I think it stopped misfiring. Still need to log once more to confirm, but no CEL after swap.

Did not get any coilpack CELs when it was misfiring. Just misfire CEL on specfic cylinders.
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Old 11-09-2021, 08:15 AM   #30
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A throttle reset appears to have everything mostly back to normal. Thank you guys for the suggestion, I would have never have thought of that.

Now that I have throttle, car runs superbly with new plugs and IP coils. Acceleration is smooth and improved. I am very pleased so far. I also notice quite a noticeable reduction in valvetrain noise. I will post if I have issues with the IP quads, but happy so far here at the start.
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Old 11-13-2021, 10:53 PM   #31
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well this sucks. Was kinda hoping the hood vents would help fix this. So far I have only had the code for the CP on the passenger front one. PITA to replace these. When it goes out I can trigger the code every time at the top of 4th. Normal driving is just fine.
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Old 02-04-2022, 11:21 AM   #32
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Well I have a possible CP issue now. The past couple of days I've gotten a flashing CEL when going WOT at highway speeds in 4-6th gear. It'll go out after anywhere from 5-10ish flashes. There's also a little studder/hesitation when I first try to get on it. Yesterday on my way home from work It stayed on. I checked the code when I got home and it's a P0301 (cylinder 1 misfire detected). So I swapped the #1 & 3 CPs to see if I can get the code to move to cylinder 3. I didn't drive the car again until today on my way to work. I was able to get the flashing CEL, but not steady yet. I'l try again on my way home. If that doesn't work, any thoughts on what else it could be?

Details on my car: it's a 2013 FRS, 107K miles, of which 105K have been boosted.
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Old 02-04-2022, 02:42 PM   #33
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fuel air spark

I'd guess if it's not spark plugs/coil packs it'd be injectors. Did you replace the plugs at 60k miles?
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Old 02-04-2022, 04:02 PM   #34
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I've seen many, MANY IP coil packs get used by folks tired of OEM coil packs going bad at the track. Have yet to see an IP coil pack bite the dust.

Add me as first to the list.
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Old 02-04-2022, 09:03 PM   #35
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Add me as first to the list.


Are you on quad or plasma?
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Old 02-04-2022, 09:11 PM   #36
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Are you on quad or plasma?

IP-A149401
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Old 02-14-2022, 10:38 AM   #37
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Here is a little bit of gold for everyone having coil pack issues. I hate to see all the suffering and money wasted replacing coil pack, especially people thinking they need high dollar ones.
I had been throwing miss fire codes on both banks intermittently for many track days. I would just clear the code and continue. It got progressively worse so I decided to investigate.
The problem is the electrical plug at the coil pack. It is poorly designed and the electrical connection is not great.
I decided to do an experiment and tweeked the male pins on the coil pack with needle nose pliers. I just twisted them 10 degrees or so to preload the connection and put them back on the car. Its been about a year (5 or 6 track day weekends) and I have not had another issue. I hope this works as well for you guys as it did for me.
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Old 02-14-2022, 03:45 PM   #38
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Add me as first to the list.
Can you provide a bit more info regarding the circumstances? Heavy track use, for example?

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Originally Posted by ROADRACER View Post
Here is a little bit of gold for everyone having coil pack issues. I hate to see all the suffering and money wasted replacing coil pack, especially people thinking they need high dollar ones.
I had been throwing miss fire codes on both banks intermittently for many track days. I would just clear the code and continue. It got progressively worse so I decided to investigate.
The problem is the electrical plug at the coil pack. It is poorly designed and the electrical connection is not great.
I decided to do an experiment and tweeked the male pins on the coil pack with needle nose pliers. I just twisted them 10 degrees or so to preload the connection and put them back on the car. Its been about a year (5 or 6 track day weekends) and I have not had another issue. I hope this works as well for you guys as it did for me.
Pretty nifty trick I'll be trying once I replace my new coils.

Last edited by sato; 02-14-2022 at 03:53 PM. Reason: Additional quote
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Old 04-02-2022, 01:51 PM   #39
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Originally Posted by ROADRACER View Post
Here is a little bit of gold for everyone having coil pack issues. I hate to see all the suffering and money wasted replacing coil pack, especially people thinking they need high dollar ones.
I had been throwing miss fire codes on both banks intermittently for many track days. I would just clear the code and continue. It got progressively worse so I decided to investigate.
The problem is the electrical plug at the coil pack. It is poorly designed and the electrical connection is not great.
I decided to do an experiment and tweeked the male pins on the coil pack with needle nose pliers. I just twisted them 10 degrees or so to preload the connection and put them back on the car. Its been about a year (5 or 6 track day weekends) and I have not had another issue. I hope this works as well for you guys as it did for me.
I love this community

I have an Edelbrock SC and just got a P0301
I want to try your trick with the coil pack electrical plug change. Did you take any pics when you tried that?
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Old 06-23-2022, 02:11 PM   #40
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Can you provide a bit more info regarding the circumstances? Heavy track use, for example?


Pretty nifty trick I'll be trying once I replace my new coils.



daily driven frs no track days. hot climate. car has hull exhaust and is tuned
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Old 06-27-2022, 02:40 AM   #41
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Quote:
Originally Posted by ROADRACER View Post
Here is a little bit of gold for everyone having coil pack issues. I hate to see all the suffering and money wasted replacing coil pack, especially people thinking they need high dollar ones.
I had been throwing miss fire codes on both banks intermittently for many track days. I would just clear the code and continue. It got progressively worse so I decided to investigate.
The problem is the electrical plug at the coil pack. It is poorly designed and the electrical connection is not great.
I decided to do an experiment and tweeked the male pins on the coil pack with needle nose pliers. I just twisted them 10 degrees or so to preload the connection and put them back on the car. Its been about a year (5 or 6 track day weekends) and I have not had another issue. I hope this works as well for you guys as it did for me.
which way did you twist or rotate? Diagram would be super helpful
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JDL 4-2-1 EL, FP and OP, Tuned by Zach@CSG on e85
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Old 06-29-2022, 08:18 AM   #42
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FWIW I’m trying a few different things this year, namely DEI gold wrapping the coil packs and using the Verus fuel rail and DI ecu brackets to allow more airflow across the coil packs. A few people on the forum have tried one or the other and say they help. Too early to know but I’ll report back with the results. Interested to see what other solutions people have.
I have cooling out the arse, vents in my hood, AC delete, foil, etc. My coils still overheat.
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