I'm having a hell of a time figuring this one out so I thought I would ask around here for some troubleshooting!
After doing my timing belt (and water pump etc) I had my mkIV golf back on the road and noticed a lack of power. I VCDS'd it and found that no turbo was being delivered at all. These are the steps that I took
I took a look at the vacuum lines and found that the ASV actuator nipple had snapped off. Whilst I was waiting for a new one, I took off the ASV/EGR valve, the EGR cooler, the piping and the intake manifold and took it to get cleaned at a machine shop.
With them sparkling clean I reinstalled them all except the ASV/EGR valve. I added a belly pan and replaced the side skirts (probably irrelevant but just in case).
When the actuator arrived I installed it, reinstalled the valve, hooked up the vacuum lines and electrical connections and double checked everything.
It started for about 2 seconds, and then stopped noisily. Subsequent cranking sounds pretty bad. I pulled apart all my air lines to make sure I wasn't starving the engine of air with an accidental rag leftover - it all looks clear. I took off the intake manifold and valve to check for obstructions and all looks clear. I can't quite see into the block intake with the engine still in the car, but I don't see any signs of rags or anything.
Any thoughts? I'm at a loss.
After doing my timing belt (and water pump etc) I had my mkIV golf back on the road and noticed a lack of power. I VCDS'd it and found that no turbo was being delivered at all. These are the steps that I took
I took a look at the vacuum lines and found that the ASV actuator nipple had snapped off. Whilst I was waiting for a new one, I took off the ASV/EGR valve, the EGR cooler, the piping and the intake manifold and took it to get cleaned at a machine shop.
With them sparkling clean I reinstalled them all except the ASV/EGR valve. I added a belly pan and replaced the side skirts (probably irrelevant but just in case).
When the actuator arrived I installed it, reinstalled the valve, hooked up the vacuum lines and electrical connections and double checked everything.
It started for about 2 seconds, and then stopped noisily. Subsequent cranking sounds pretty bad. I pulled apart all my air lines to make sure I wasn't starving the engine of air with an accidental rag leftover - it all looks clear. I took off the intake manifold and valve to check for obstructions and all looks clear. I can't quite see into the block intake with the engine still in the car, but I don't see any signs of rags or anything.
Any thoughts? I'm at a loss.