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Hi, welcome to Just Answer.
Thanks, XXXXX XXXXX compression is 0, you'll need to remove the timing covers and check the crank and cam timing marks. The timing belt could have slipped and caused the valves to touch the pistons..which is common to these. If the timing belt and marks are definitly good, you'll need to do a leak down test, with a leak down tester, to issolate where the compression in going.
The balance shaft marks will only cause a vibration but not a compression loss. Just to be sure, have you tried your compression guage on another car? Also, when you crank the engine, does it sound like it spins fast?
And are all the cylinder compression readings at 0 psi? Or is there even 10-20 psi?
Alright...the next step would be to do a Leak Down test...we need to know where the compression is escaping. If it's the valves, the head can be pulled and repaired...if it's through the piston rings, we'll know where we stand...in most cases it's better to install a good used or rebuilt enigne if the problem lies in the rings.
Thanks for the ACCEPT, let me know if you have trouble with the Leak Down Test..