Jan 272020
 

2013-hyundai-veloster

DTC’s Present P0302 – Cyl #2 misfire detected, P0300 Random Cyl.
misfire detected, swapped coils and plugs from cyl 3 and 1 to #2 no
change, inspected cylinder with bore scope there appears to be an
anomaly which looks like burn holes, performed compression test cyl’s
1,3 and 4 have equal compression at 90psi #2 cylinder has “0”
compression will require an engine, no oil present on dipstick, no
knocking from bottom end concern seems to be valve train related. too
much carbon in cylinder to identify if piston has damage.



Removal of the head assembly and inspection will give you a more definitive answer.

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