Nissan PR25DD Good motor?

[Oldislander]

Whats everyones thoughts on the 2022 PR25DD engine? Good reliable power plant?
Any common issues?


Thanks

[PapaSmurf2k3]

The PR is basically a QR with some upgrades for direct injection. We don't hear a whole lot of reliability issues from them, as they typically far outlive the continuously variable transmissions that are bolted to them.

[VStar650CL]

The only repetitive issue we see with the PR is carbon screwing up the Throttle Bodies. Although they have a siamese port/direct injector setup which prevents big carbon on the intake valves, they still spout carbon back into the TB through the PCV like any DGI engine. I think maybe the mixed injection exacerbates that in some way, because we do seem to see a lot of crappy TB's on the gen6 Altimas. To prevent that, keep it on a regular diet of Techron or SeaFoam in the fuel.

[Oldislander]

I have a 1995 Ford F-150 that does the same thing. Gasses from the PCV gum up the TB plates real bad. I plumbed in a catch can between PCV and TB and it has helped quite a bit.
Don't know if that would be feasible on the Nissan though.

[VStar650CL]

I plumbed in a catch can between PCV and TB and it has helped quite a bit.
Don't know if that would be feasible on the Nissan though.

I haven't seen anyone do that, but the way the PCV is plumbed right on top of the PR25, I don't see why you couldn't.