I have a 2013 1.4 turbo cruze with 172,000 miles on it...all highway miles......lost power going up a hill....service stabilitrak and traction control came on display and check engine light code of p0303 misfire cylinder #3 was read out later after limping it back home at reduced power skipping and jerking ....Checked cylinder #3 plug and it looked fouled all others were clean...replaced all with new plugs....still didn't help...still miss-fire cylinder #3.....checked compression in all cylinders...#1,2,4 were from 185-200 psi ...cylinder # 3 was >> 0 psi<<??......poured a little oil in #3 and checked again...still 0 psi....is this a burnt valve or cracked piston/ring lands?? any advise on diagnosing this further?