Jump to content
SAU Community

Recommended Posts

Have had the old girl for 5 years now, and it's been the best car I have ever owned.... until.... If you started it cold, about 30 seconds into your drive it would start a rhythmic 'miss' between 1500 & 2000 rpm, if you could get her above 2000 it would stop missing. Once the car got to operating temp, you can turn the engine off, then back on and it will run like a dream!. although I have noticed the old smell of un- burnt fuel. Now we are closer to winter, in the mornings when you first start it up (to warm up the engine) it will surge up and down till it warms up. Now over the last 3 months I have spent around $1000 trying to sort this, the first computer diagnostic said front Cam sensor Done (no change) light came straight back on during cold missing, the next error that threw up was the rear Cam sensor... replaced... no change... next was the AFM .. no change..... too scared to see what comes up next... now a rattle has started to come from the engine when you put her underload, and sound like the timing is still off. Anyone been through this scenario? Any advice would be much appreciated. Thank you!

Don't know how much info we have here on that motor as all the Stagea in Australia are mainly the VQ25DET or VQ35DE, maybe ask as well on a V35 skyline forum.

also other cars that came out with this motor are: A33 Cefiro, Cedric/Gloria.

maybe change the thread tile to include VQ25DD for better results.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • The wiring diagram for the R33 RB25 is freely available, and is essentially the same same as most other RBs (just with differences as to which pin # does which job). To get the ECU to power up, you just need to provide power to the ECCS relay, and have the other power feeds that come in from the top left of the wiring diagram (wrt the ECU) that give perma power to the fuel pump relay, the ECU itself, etc etc, all connected. When you put power on all these it will just come to life. It's pretty clear from the diagram what needs to happen. Just follow the lines from the 12V + supply stuff in the top left over towards the ECU. I've even posted snips of such diagrams (not for vanilla 25, I think for Neo and 26) to various threads here in the last few months, talking about what it takes to get the fuel pump and FPCM up and going. Search these up and they will help get you started on doing the same with the vanilla 25 diagram. Hell, for all I know, I've done the same with that one in years past and have forgotten.
    • Yep...so unless someone posts up the answer you will need to probe from the ECU connector to the dash plug with a multi meter in continuity mode to trace the wires.  Note the ECU has multiple - and + (and across different key settings - Battery, IGN and Start) and most likely the power is fed from the connector(s) that is normally near the left hand headlight.
    • Thanks Duncan, I am actually just trying to get the Rb turning and running with the RB25DET S2 original loom itself  I am just trying to get it going outside the body and not thinking about the S15 or trying to match anything to the S15 loom at all I am only trying to see if anyone has done this and what pin they found to be the ignition trigger and ECU+/- on the dash connector, that's about it. Thanks  
    • Hi Guys, Does anyone know any aftermarket part numbers for a starter motor to suit the VQ25DET? I can find lots of alternative part number for the VQ35DE, which I assume would fit, but there is a lot of conflicting information out there. Thanks..
    • I don't understand how this hasn't boiled down to - Upgrade the turbo when you have everything required. ECU, injectors, fuel pump, turbo, etc. Do it all at once.  If you don't have everything required, just enjoy the car as it is and keep saving up your pennies. 
×
×
  • Create New...