I have a 2001 Passat with 2.8 ATQ engine and then I have this very nice AHA engine complete sitting.
The engine in the car has a broken valve and a broken piston.
I was wondering if you guys know: besides the fuel injection, is there any other difference between those two engines? Can I just install the bare AHA engine (block + heads) in place of the ATQ, and then connect all the hoses and wires? Or there will be some surprises down the road? Like sensors not fitting, missing some brackets etc. Looks pretty similar to me...
FYI : I finished this project and the car works fine. I simply kept the original intake manifold (together with all electrical parts attached to it). All sensors that were on the block (knock sensor, oil pressure) got replaced together with the engine. Also, I have now on the car the AHA exhaust gas recirculation valves and pipes that came attached to the back of the heads.
Good to know!
Getting ready to do an ATQ and found a AHA donor.
ok, let me know if you have any questions. also, there are two coolant hoses connecting the throttle body to the steel pipe under the intake. You should keep the hoses from the car, as the AHA has different hoses because of different throttle body. But the pipes are the same.