Yeah, I'm still without my JX35 Infiniti for the moment. I never got a part number for the stepper motor, but I did find the valve body for sale on eBay. To look at the photo of it, it almost appears that there is no stepper motor there. Maybe that's why I can't figure out the stepper part number. Anyway, I can have a new valve body assembly for around $400. That, plus the cost of jack stands plus the cost of a replacement oil/filter will still be WAY cheaper than any option Infiniti will give me. I figure there's not much to lose trying to fix it myself. I've watched enough YouTubers change theirs on various Nissans/Infinitis that I feel comfortable giving it a go. I'm no mechanic, but I'm not mechanically stupid either.hey bro I just got a p1777 yesterday and I'm freaking out because they told me the exact same thing for my car I have a 08 Altima too but noticed that the 2008 one wasn't on there are the other ones a good substitute
Luckily, I have two more vehicles to drive!