Starting Issues - I'm at a dead end
I have a 2002 GTI 337 Edition and it won't start on the first try. It will usually start on the second time. Its throwing a code related to the camshaft position sensor(Don't remember the exact code number). First thought: Replace the camshaft position sensor. Replaced it with an Import Direct one, didn't fix the issue. Then the keyway broke and I rebuilt the whole top end. New valves, remachined head, keyway, new timing gear, timing belt, all new pulleys, water pump, clutch, flywheel, and fuel pump. Sure enough... still have the starting issue. Thinking that maybe it was related to the fact that I didn't replace the CPS with a true VW one, I went with a Bosch one and it still didn't solve it.
Do you guys/gals have any suggestions as to what it might be at this point? Bad ECU? Bad wiring?
It currently has the APR Stage 1 flash on it.
Sometimes it won't start on the second try and it will struggle like the car is killing the spark half the time.
When it wants to start, it fires right up.