Engine Specific Info and Questions > mTDI Mechanical TDI Conversions

Injectors

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rodpaslow:
Can't seem to find this in search - can you swap alh injectors into a older 1Z/AHU engine?  I know they have different break pressures.  Is that any problem for a M-tdi pump? (LR)

vanbcguy:
Pretty sure the AHU injectors actually have the same pop pressure as the ALH actually. The 1Z was initially different though I believe, however I think that may have been changed mid life cycle.

Either way, no harm whatsoever swapping in ALH parts, especially with a mechanical pump. Timing is the only thing that would be affected.

libbydiesel:
ALH injectors are interchangeable with AHU but I keep them as sets.

rodpaslow:
Yeah, I just wanted a spare set as I think it would be much easier to just swap out new (new nozzles) with old, and possibly experiment with different sizes to find what works best with setup.

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