O drove my Corolla to the point the spark plugs weren't firing and the car wouldn't start. I changed the plugs and it ran great after that.
Maintenance: 39th Oil Change (every 10K) and Tire Rotation, 13th Engine Air Filter, 13th Cabin Air Filter, 3 brake jobs, 3 coolant flushes, 2 spark plug changes w/carbon cleaning, no suspension work, no transmission service, 1 Break Down at 280K Due to a Design Flaw In The MGR Cable Which Powers The Hybrid System $5200, cat issue at 380K due to bad gas, no hybrid battery replacements in case you were wondering, does not consume oil
UPDATE: owners manual calls for replacement around 120k so I'm not that far behind i guess. Still went out and bought 4 new plugs and installed them. $80 at the dealer
Noticed before the LTFT was -6% and now its back to 0%.
We changed that spark plug and the customer was happy with the magneto drop. That spark plug worked fine on a Champion spark plug bomb test.
Champions quiet redesign of their plugs to match Tempest made up my mind. It matters, and Champion is just trying to save face.
I always run champion platinum in the coil rail 4.0s. Sometimes engines are particular.
I have measured resistance above 5k and determined the plug to be causing a problem. Typical resistance is 1-3 kOhm, sometimes less for a new one.
I was given an "offer" to have my spark plugs changed for $368!
Avoid Champions. Use NGK or Denso. Don't go cheap on plugs because the job is labour intensive.
Side note, Champion spark plugs suck. Use them in lawn mowers.
Write your review
Help others - share your experience with this part.
