Moderator: volvite
smj999smj wrote:You should be able to just remove the throttle by wire throttle body and replace it with the cable-activated throttle body, assuming the bolt-up pattern is the same. Worst case scenario, you may have to swap the upper plenum, which you may or may not have to do anyway depending on any differences as far as sensors, vacuum or water fittings, etc. Another thing to check is the camshaft position sensors and crank position sensors between the two engines. IIRC, someone once tried to install a JDM VQ engine in a Pathfinder and found it had only one crank position sensor and there was no hole on the other head for the other sensor nor any reluctance gear on the back of the cam.
Well, it seems I too am missing the cam gear sensor on my JDM engine.. do you know what the fix was for this issue? I have the original ECU that came with the JDM motor.. not sure if that is going to help or not.. the only solution I can see at this point is to swap out the heads.. which I really would rather not do... smhsmj999smj wrote:You should be able to just remove the throttle by wire throttle body and replace it with the cable-activated throttle body, assuming the bolt-up pattern is the same. Worst case scenario, you may have to swap the upper plenum, which you may or may not have to do anyway depending on any differences as far as sensors, vacuum or water fittings, etc. Another thing to check is the camshaft position sensors and crank position sensors between the two engines. IIRC, someone once tried to install a JDM VQ engine in a Pathfinder and found it had only one crank position sensor and there was no hole on the other head for the other sensor nor any reluctance gear on the back of the cam.
the guy at the warehouse where i got it front is just an employee there.. he has no specific knowledge on any of the engines they sell.. i had to walk him thru just taking pics of the cam sensors on the engine he had in stock. he kept telling me it had a cam sensor when in all actuality it was just a plastic block off plate.. i knew right then and there he was just a parts pusher.. lolsmj999smj wrote:You would have to talk to the guy selling you the motor to see if the gear is there or not. If it's not, you would be looking at swapping the cams and having to adjust the valves, which I'm not sure if they used bucket tappets with shims or just different sized bucket tappets on your particular engine? They've used both on VQ engines. The shim type are a little easier to adjust as long as you have the proper tool.
Its seems 01-02 are cable and 03-04 are fly by wire from what I can tell as of now.. I've seen 2 fly by wire motors now and one had the missing cam sensor and one didnt.. so there must be a different variant between the fly by wire engines too... I'm crossing my fingers and hoping this one WITH the cam sensor provision will work in my 01 with my cable throttle body.. I will just install my old cam sensor into the new engine.. funny thing is when I unplugged the cam sensor on my original engine while it was running nothing happend.. didnt even kick on the check engine light.. so obviously it will run without it.. not sure what happens when it gets up to running temp tho... might start looking for a signal and if it's not there it might throw a code then, but unfortunately my original engine wont stay running that long to find out..Pathfindork wrote:So what year R50 changed to the fly-by-wire system?