In my quest to get a smoother idle vibration, I replaced my cam with a Colt Cam regrind, plus new lifters.
A little difficult to start, but ran it half hour at 2Krpm for break-in and felt smooth. Drained and changed the oil. Still a little difficult to start but then would get smoothly to 5Krpm. The idle was rougher than before, and maybe a little slower.
Tried to drive it, but no power going up driveway or the street, felt good downhill.
Frank's Vagcom said "cam position sensor implausible intermittent". Torsion value 0.0. I bought a new sensor, no difference.
So, could it be the cam, the sensor, the wiring, the cam sprocket? I have never had a starting problem before. I have double checked all charge air connections, and all electrical plugs in the engine compartment are plugged in. I would like to have a decent idea before putting the old cam back in.
It does the same if sensor is unplugged
Thanks.