GumbyXtrail
X-TRAIL NEWBIE
Date Registered: 03-2022
TOTAL POSTS: 7
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Random misfire
Hi guys,
After some extensive searching on the problem I'm having, I can't seem to find a post with the same issues...
Recently purchased a 2007 exxy, was all running fine when bought, but soon developed a random misfire. Scanned for trouble codes, got p0301, engine misfire cylinder one. Pulled coil packs and plugs, swapped number 4 for number one on both plug and coil. Cleared code and all was sweet for about 5 mins then started misfiring again. Checked again and p0301 is back. Checked and cleaned coilpack earth wire, did wiggle test for the loom, nothing seems to work. Weird thing is, like I said its completely random, can be driving fine and then drops to 3 cylinders, then comes good again. All I seem to find when looking for the symptoms is cam and crank sensors going bad and causing dramas, vehicle has 320k on it, would this still be the issue for an 07 model? Any help would be greatly appreciated! Sorry for the long post also... 😒
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24/Mar/2022, 4:47 pm
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
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Re: Random misfire
How do the spark plugs look ?
Is there pitting around the edge at the end instead of just the tip and earth electrode ?
Are you sure the spark plug is seated fully in the thread for cylinder #1 ?
Is there oil in the spark plug tube ?
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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24/Mar/2022, 9:43 pm
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