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

 

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

 

checking leak down test next