jackfolstam
Veteran Member
I just bought a Caddy with what I think is an AHU MTDI in it. I've done a Rabbit with ALH swap and don't know much about the AHU.
t's got a VNT15 on it, with nothing hooked up to control it. Since this thing has an exhaust, oil lines, intake, intercooler piping, etc I'd rather not change it all out for a different turbo. Can I run the VNT15 without controlling it and damage the engine?
If the vacuum actuator thing is sitting at rest I'm thinking it is making very little boost, not full boost?
The pump has a vacuum line from the intake hooked up. If it sees only atmospheric or what little boost this thing is making will it defuel all of the time?
I haven't driven it around due to massive coolant and engine oil leaks. Previous owner (he didn't build it) said gauge said it makes 14psi. That's atmospheric right? The gauge line was on a T between the intake mani and the pump (which I have removed).
A quick search reveals it's not impossible to make it work, I'm part way through a thread where a guy plans to make an Arduino controller for it.
The TB cover says AHU, could someone have put the cover on there, or just the sticker, to fake having a TDI just to sell?
The head looks like an AHU with a Land Rover pump on it, and I can't find an ECU. There's no way to put an AHU head on a 1.6 right? It sounds like a 1.6, nothing like my ALH.
I can't find a displacement casting on the back of the block.
(pics were taken at night, sorry)
Is the CCV the same on ALH and AHU? it doesn't seem to fit well here and I think is the same as on my ALH.
The main question is, will not controlling the VNT15 damage anything?
t's got a VNT15 on it, with nothing hooked up to control it. Since this thing has an exhaust, oil lines, intake, intercooler piping, etc I'd rather not change it all out for a different turbo. Can I run the VNT15 without controlling it and damage the engine?
If the vacuum actuator thing is sitting at rest I'm thinking it is making very little boost, not full boost?
The pump has a vacuum line from the intake hooked up. If it sees only atmospheric or what little boost this thing is making will it defuel all of the time?
I haven't driven it around due to massive coolant and engine oil leaks. Previous owner (he didn't build it) said gauge said it makes 14psi. That's atmospheric right? The gauge line was on a T between the intake mani and the pump (which I have removed).
A quick search reveals it's not impossible to make it work, I'm part way through a thread where a guy plans to make an Arduino controller for it.
The TB cover says AHU, could someone have put the cover on there, or just the sticker, to fake having a TDI just to sell?
The head looks like an AHU with a Land Rover pump on it, and I can't find an ECU. There's no way to put an AHU head on a 1.6 right? It sounds like a 1.6, nothing like my ALH.
I can't find a displacement casting on the back of the block.
(pics were taken at night, sorry)
Is the CCV the same on ALH and AHU? it doesn't seem to fit well here and I think is the same as on my ALH.
The main question is, will not controlling the VNT15 damage anything?