Going turbo on a 02 Tahoe with a LY6 swap. Pulled the plugs and im being told #3 cylinder is running hotter than the rest by looking at the plugs. Any truth to this? Been running it N/A fro 2k+ miles. Also trying to find out if there is any way to trim individual cylinders?
NA 6.0 Plugs.JPG
The plugs look the same to me.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
unless one cylinder has a long term drastic effect then reading from this angle doesnt mean much.
spark plugs are read by inserting a new set, making a pass or dyno run, and then reading the inside of the plug porcelain way down inside the main body.
Last edited by cobaltssoverbooster; 04-04-2019 at 05:18 PM.
2000 Ford Mustang - Top Sportsman
From what I understand, the second plug from the left has 4ish threads that are black and the rest of the plugs only have 2 threads that are black. Indicating a hotter/leaner cylinder?
If anything it could be an injector that isn't flowing as much as the rest. Only way to tell is as cobalt suggested. Have you replaced the injectors?
Reply With Quote