First timer

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

rockola1971

Full Access Member
Joined
Dec 29, 2016
Posts
2,756
Reaction score
3,848
Location
Indiana (formerly IL)
For the one who asked to see more pics of the plug. I got you
That plug didnt break apart from debris smacking it. That plug's electrode melted off. Have a look at the end where it looks laser cut, almost a perfect EDM cut. That cylinder was running way too lean. PCM program or injector related assuming you have no ignition problem.
 
Last edited:

Tonyrodz

Resident Resident
Joined
Feb 16, 2012
Posts
32,086
Reaction score
48,324
Location
Central Jersey
That plig didnt break apart from debris smacking it. That plug's electrode melted off. Have a look at the end where it looks laser cut, almost a perfect EDM cut. That cylinder was running way too lean. PCM program or injector related assuming you have no ignition problem.
Hopefully those plugs were genuine parts and not a knockoff.
 

Mudsport96

Full Access Member
Joined
Jun 6, 2020
Posts
1,346
Reaction score
2,185
Location
40.923,-89.488. Illinois
That plig didnt break apart from debris smacking it. That plug's electrode melted off. Have a look at the end where it looks laser cut, almost a perfect EDM cut. That cylinder was running way too lean. PCM program or injector related assuming you have no ignition problem.
Excessive heat killed the electrode and the porcelain was made brittle by heat and probably shattered from detonation.
Both over time, if not too terrible, will wipe out a piston. If it is bad enough it will be fast though.
OP, While it is a good idea to continue following the codes, you also should look into a borescope and check the cylinders. It is possible part of the power issue is declining physical health of the engine. (Not necessarily, but a possibility) if it wasn't tuned right.
 

Forum statistics

Threads
134,291
Posts
1,899,565
Members
99,774
Latest member
pannoner3
Top