1PZ vs 1HZ Fuel injectors (1 Viewer)

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Joined
Feb 22, 2022
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West Texas
I'm confused on whether or not 1PZ and 1HZ fuel injectors are interchangeable. On Partsouq it shows the same part numbers, the 1HZ just has one extra injector. When I google 1PZ injectors it looks like they're different from the 1HZ injectors and compatible with the 2C-TL engine...

Does anyone out there know for sure?
 
Hello,

You can think of the 1PZ engine as a 1HZ minus one cylinder.






Juan
 
For future reference I just replaced my 1PZ injectors (original part number 23600-19015) with 1HZ injectors (part number 23600-64050) and it worked just fine. During my research I discovered that not all 1HZ injectors use the same denso nozzle, and they have different opening pressure. I made sure that my replacement injectors had the denso DN20PD32 nozzles, and I *think* any 1HZ nozzle holder assembly with the DN20PD32 nozzle *should* work in a 1PZ engine.

Useful reference
 

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