Misfires and Ignition Coils
So, for the past month or more I've noticed some slight missing at idle, especially with the air conditioning on. Today around 4pm I had to run up the street during work to pick something up, and on the short ride I noticed some hesitation and the check engine light flashed a few times. I got to my location, went in and did what I needed to. Came out, started the car and headed back to the office. It was more hesitation and now the check engine light came on solid.
A quick code check and sure enough, P0302. So misfires on the 2nd cylinder. The Fit now has 104,270 miles on it, and I know it's common for the ignition coils to need replacing around 100K (many have to replace even earlier). I had replaced the plugs with factory NGK's back in March. Reset the code and went back inside the office.
I looked around and found the factory Denso coil packs for $63 each (shipped). Checked local quick spots for comparison, such as Oreilly's and Autozone as well. Oreilly had their version for $82/ea, and AutoZone had theirs for $60/ea with "lifetime warranty". I found this a little surprising with electric parts, but verified it. Store up the road from the office had a few in stock, so I figured it was worth picking one up and giving it a shot. Ordered online (even got to pay with PayPal) and then ran up to the store to pick it up. In and out in about 3 minutes. Ran back to the office, grabbed a 10mm and replaced it in about 2 minutes.
Started the car up... ran great, throttle response was good, and of course, no codes. This was about 5:45pm, so was time to head home. Drive home, was good. Car felt a bit more responsive then it had lately. So seems the probem is solved 
