Misfiring badly, need help
Sheesh - I had the same experience a few weeks back on the 2003 Disco towing the boat as well. The truck new to me, so was in the process of getting rid of the gremlins anyway. All of a sudden, started mis-firing and SES came on. When I took it in, the code was for the purge valve, so checked all the connections, cleaned the Purge valve, etc. SES went away, but still getting misses.
Anyhow...
Both his misfires are from the same coil pack. Just finished changing my coil pack minutes ago, misfire #1 and #6, (codes P1300, P0301, P0306), which, it's the same coil pack for both of those wires/cylinders...changed coil pack and it corrected the issue. Changed wires while l was in there.
Last edited by The Deputy; Aug 29, 2020 at 04:52 PM.
I was merely responding to the boat towing. just commenting that I am following this as I also had a similar starting point. And, as I haven't solved mine yet, I will keep an eye on this thread as it may end up I do have similar issues...
You may need to replace purge valve.
To EHGIII -- I texted you 3+ hours ago at the number you provided but I haven't heard from you. Please let me know whether or not you still want the full set of Magnecors. I'm happy to give them to you.
Purge valve replaced with the Hyundai part from the Dealership.... they gave me a discount ($90 down to $75), but still not cheap. Still missing. Heading back in to see if there are any new codes. I do find it interesting I started getting the misfire while pulling the boat... but I am attributing that to a weak spark or bad wire. they were replaced by the PO....
I just had that happen to me yesterday. Haven't had a problem in 15k miles and somehow it worked its way off


