Hazzid69

Checking the tune I wasn’t sure if shit could get outta whack or anything. The timing I wasn’t sure if you could use a light or not as I’ve read a few things mentioning that a light wouldn’t work for some reason. As for running rich all I’ve done so far is plugs, coils and had to replace maf sensor cos that kacked itself. Not sure if any of those would help tho. Cher’s for your reply

Hey team. Bit of a noob question. I have to take my 34 to an auto sparky to get a couple of bits n pieces sorted out. Ive notice that the car seems to run a bit sluggish and smells a bit rich. I used to have an S14 which was also only an NA 2L auto but that seemed to have a lot more go than my 34. would checking the tune/ timing etc be something they would do or would that be more of a mechanic thing. cheers in advance.

Hey everyone. Just after opinions. Im building a 25DET to put into my 34. Now I know a 25 big box would be the obvious choice but just wondering if a 20det box would be sufficient. I’m not a drifter or someone that’s going to be ripping rubber every time I go to the dairy so just curious if a 20det would cope. Also ive looked into the D22 navara boxes. Apparently they are the same internally ie ratios etc. has anyone heard of these being used and what alterations would be needed to bolt up. Cheers in advance

Cheers mate will do. Yeah if you could send me those link it would be great. Thanks

Sweet cheers guys

Hey team. I have recently bought a broken RB25 that I’m going to rebuild to replace my 20DE neo in my 34. It has 75T stamped on the block and head. From research I have found it’s out of a 33 but have various results whether it’s a DE or a DET. Did Nissan use the same block and head for both and if so how do I tell what I have and if a DE what changes would I have to make to convert to +T. Thanks in advance

Cheers mate. recently bought a consult and plugged that in. Came up with 15 faults for maf sensor and one for knock sensors but says 0 starts in brackets??? so got me a second hand maf and I cleaned out the throttle body while I had the piping apart. That was filthy. All seems to be going well now. I’m going to hunt down the knock sensors to see if they are properly connected and the wiring is in good condition as from what I’ve read the sensors are pretty bullet proof. And I’m wondering if the 0starts means it isn’t picking them up but not sure.

Cheers. Will have to look into that then. As I’ve pretty much done all the same swap outs you had done. Plugs, coils, air filter replaced a few cracked vacuum hoses all to no avail. Was just about ready to pull the maf apart to look at solder joints but might check the cas first

Did the navara box bolt straight up or did you have to swap out bell housing

Did you ever find the cause. I have a similar issue with my 34 20de neo. Did it also randomly stall at idle

Cheers. Will do

Cheers mate. are you talking inside the sensor electrical box or inside the actual sensor where the hot wire is.

Hey all. I have an R34 with a 20de neo..... I know?. Any way. I’m having issues with idle fluctuations and randomly stalling. I’ve replaced plugs and coils to no avail. I have tested the maf signal output which was reading quite high fsm says at idle should be between 1.1 and 1.4 V from memory but mines running at around 2 - 2.2V at idle. I cleaned it with the proper maf cleaner but no change. Only info I could find was regarding low voltage but not high. Any thoughts. Now this is my daily runner atm and I’m just trying to keep it ticking along for now. I have a 25DE engine and trans from a 33 in the shed that I’m going to rebuild and +T but that could take a while so just need to keep the car running till then

Makes sense. So what I’m looking at is if can I get hold of all the required bits and bobs ( controllers etc ) will they mate up with a standard trans or is there some internal differences. Cheers for the reply

Hey team. I have a 20DE neo with factory auto. I have recently bought an R33 25DE and standard auto trans. Just wondering if I could run it as a tiptronic if I got the standard shifters out of a 34 or is the transmission different. cheers

So yes I managed to get hold of my mechanic mate that’s built a few rbs and it’s a 20DE neo. So will just have to be a runner while i gather bits and bobs to either drop a 25 or 30det into it. Bit gutted as I only bought it as it was advertised as a 25. Cheers for all your input guys. Such a primo forum

Bugger. Might have to take it to my local and see if someone with more knowledge than me to have a poke around and figure it out. Will be disappointed if it is as it was sold to me as a 25.

So good having so much knowledge around. Cheers guys

Oh god the plot thickens. Haha. I’ll post a few pics from the top of engine as from looking at it I was sure it was a 25. Could a 25 head be whacked on a 20 block

Couple of pics just in case it helps

Thanks mate. Now just need to figure out the engine number. I would assume the fuel and air mapping would be different between a 20 and a 25. So would possibly make it run a bit average

Hey team. I recently bought a 1998 R34 which has been 25DE swapped from factory 20. Had some running issues so started doing some digging. The ecu says it’s a 23740 AA010. The closest I’ve found to that is a 23710 AA010 which says it’s for a 20DE. So just wanting to confirm ecu is correct for a 25. Next hurdle i hit was engine number. I got 2 numbers on the bottom passengers side of the block. First which I believe to be the number in need is 5L3 but can’t seem to match this to anything. The second is 90188 not sure if this helps any. Any my help would be appreciated cheers guys

Hey team. Massive thanks for this thread. It's amazeballs. Just wondering if a factory 25DE ecu could be used to get a 30DET running. Just temporarily so I can check everything for leaks and I'm eating myself noises before it goes for dyno tune. Not sure what ecu I'm going to use yet will speak to the tuner before to see what brands they are familiar with. Once again cheers guys