Hi all,

I'm slowly going through my revamp of a 16v, but two problems persist. One, the car takes forever to start if it's been more than about 15 mins since it was last started. It will crank 10-15 times, try to catch every once in a while and finally start. When it's been sitting for 5 mins or so it will start much quicker. 2. when idling, the motor vibrates so much the car shakes. If my hand is hanging out the window it visibly shakes up and down.

Now, things I have already done, all of which have helped power and smoothness but those two problems persist (with the starting problem getting somewhat worse):

1. Valve Adjustment
2. Pulled fuel distributor, lines, injectors, idle valve and gave them an ultrasonic cleaning. I did not clean the EHA valve, I will do this next.
3. New, proper, non-resistor plugs. (NGK BP7EFS)
4. New motor, trans and subframe mounts
5. New cap and rotor

Motor is smooth as silk once I put my foot down, even if I keep it just above idle. It pulls smoothly to redline and will burn the rear tires easily. Sounds demonic at WOT.

Fuel pump is of unknown vintage, fuel filter was replaced within the last 3 years and I have a new one ready to go in.

Any thoughts?