New intake plenum gasket but engine shakes?
 

I had replaced the upper intake gasket and now when I start the engine up it shakes.. I had a long days work so I'll give it a rest for tonight but I'm guessing I just didn't plug in the spark plug wires all the way.... Anything else I should look for? I'm pretty sure all the electricals are plugged in I reset the codes etc.

Any help is appreciated

Thanks

Re: New intake plenum gasket but engine shakes?
 

I bought new plugs today and I'm wondering if I damaged my coil pack while I removed the plenum... Earlier today my engine light came on and it gave me the code p0174 there is a miss on bank 2 and I can only feel it when the engines under load. So I suspect bad plugs/wires I'll give and update later tonight when I replace them

Re: New intake plenum gasket but engine shakes?
 

found the cause.... bad spark plug wire, pulled one off to change the plug, found the part inside of the boot of the wire that clips on the end of the spark plug.... ran the engine without it plugged in and the engine ran the same.