2001 taurus
 

i have 01 taurus with rough idle code po302 #2 cyl.put plugs wires coil new injector checked most everything runs fine when driving

rough idle
 

more on my post 01 taurus #2 cyl. only has 80# compresion

Not quite enough..

Whats the mileage, and comparable comps?

160000 80#

Now you know where the problem is, do you have access to a leakdown tester? That test will help determine if you have a bad valve,head gasket,worn rings etc. I don't believe you have a questionable lobe on the camshaft, but at this point anything is possible. Will watch thread to see what you decide. Good Luck, hanky

01 taurus rough idle
 

checking leak down test next