[Dustin]

Originally Posted by Ethan

I got another P0302 code. This is the second time. I replaced the coil pack and plug about a month ago. The check engine light went off at about 6000 rpm. Anyone else have this problem? The particulars are: 93 octane gas, manual transmission, Innovate SC with 70 mm pulley, FA20 club version of the intercooler, running Bill's 8.53 tune (will be upgrading to 8.58 soon).

Scott

Originally Posted by CK_Bladesmith

I can make my car misfire on cylinder 2 if I get around 5k rpms and roll on to the throttle slowly. Same specs as you listed. Makes a really nasty almost tearing sound when it happens. Probably my coil pack being a piece of shit.

Originally Posted by Lawnik

I can as well using a similar technique but I don't get any sound, just a flashing cel of P0303. I can also get it to flash it by not allowing full warm up and pushing it early.

I logged all 4 cylinder misfire counts and it happens actually in both 2&3 cylinders, even though it only throws P303 which is for #3.

Checked plugs, they looked good but replaced them anyway and swapped coils, neither had any noticeable effect if I induce as per above.

Now if I don't intentionally induce it and allow time to warm up before getting into it, I've had no issue.

Anyone thought of going with an aftermarket COP setup such as Okada or Cusco? They are pricey but if it solves the problem.