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Canadianz

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Posts posted by Canadianz

    RB25det hunting for idle . .

    in Nissan RB Forum

    Posted

    Well it seems I jumped the gun a little, the car no longer hunts for idle, however now if I hit the throttle or try to blip it any way other than very slowly the engine bogs right down. Falling on its face, the MAF was wired in incorrectly and that is now fixed, this bogging issue is weird though. Would a faulty TPS sensor cause the engine to be confused ? The engine seems to run pretty rich so Im not sure. Im going to get a new o2 sensor today hopefully rulling that out. Does anyone know the part # for a RB25Det series 2 o2 sensor? Or an cross reference ?

     

    Any how thanks for the ideas, the bugs are slowly getting worked out...

     

     

    Thanks

     

    Chris and Rob

    RB25det hunting for idle . .

    in Nissan RB Forum

    Posted

    Its fixed !!

     

    Thanks guys,

     

    it turned out to be that the signal ground and the power ground of the maf were combined so the thing was reading all over the place.

     

    Thanks for the help....

     

    now to get those fenders back on and take it out of the shop . . .

    RB25det hunting for idle . .

    in Nissan RB Forum

    Posted

    Thanks for the fast responses,

     

    PanzerAce: Fuel filters are in great condition and I;m running big lines 3/8's

     

    janaka: Im going to check for leaks thats a really good idea

     

    streeteg: Im going to check that idle screw ... I took off my idle air crap though . . . . would that do it ? I blocked off the hole and the interesting thing is that it was running worse with the idle control hooked up. . .

     

    Evan/Careless: Im going to try a different Maf I have an extra lying around

     

     

    Thanks guys ! !

     

    I have my night planned out now !

    Traction Issues with the RB's

    in Nissan RB Forum

    Posted

    Thanks for the feed back, that defiantly helps. I really really want a set of Konig Rewinds but unless they can custom make some fat ones for the back I might not. . . I was going to go 7's all around but after getting your feedback and riding in a skyline Im thinking other wise. So basically I need a combo that allows at least 245's or more in the rear ?

    RB25det hunting for idle . .

    in Nissan RB Forum

    Posted

    Well the RB is running and can move the car now. We have a bit of a problem though as the engine seems to be constantly hunting for an idle, reving up and down with almost no power. If you try revving it it falls on its face and bogs. Does any one know what could be causing it ? I was thinking it could be a bum o2 sensor but im not sure. We have a big throttle body with a q45 TPS sensor which seems to be giving the correct voltage too. Any one have a similar issue ? Any input would be awesome ! This is on a stock block RB with an intake and exhaust manifold running on the stock ECU w/stock injectors.

     

     

    Thanks

    Chris Crombie

    Traction Issues with the RB's

    in Nissan RB Forum

    Posted

    Well the Datsun moved under its own power the other night which was very exciting, so we are getting very close now. I also got a ride in an R32 GTR, MAN those things are quick ! Im wondering now if my rims will be too small to give the car any traction, I was looking at a set of 16x7 rewinds with I think 205/45/16 rubber on them. Its not set in stone yet though . What size of rear tires are you guys running and how are you finding them? Ideally I would like to get some 16x9's and flare the cars but choices for a Watanabe style rim is pretty slim in that sizing. Any one have any ideas or experiences that could help me out ?

     

    Thanks

     

    Chris Crombie

    RB problem solver in Toronto Area

    in Nissan RB Forum

    Posted

    Rb25's arn't pink least the ones I have are purple on top. If you find out you have a bum injector you can always steal some of a sr20det they are the same I think. If you have a friend with a stock ECU around here it might be worth trying that too. As the other guys said depending on the tune of it that might be causing half the problem.

     

    Any how best of luck

    oh also have a look at the idle air valve on your intake manifold, the RB's run really screwy if there is a vacuum leak.

     

    good luck

    Chris

    buying just an s30 shell?

    in Nissan RB Forum

    Posted

    Just as a heads up, rewiring the chassis isn't that big of a deal as long as you are very methodical. If your not, it is a huge pain, my brother and I basically replaced the entire wiring in our Z while doing the swap as there were quite a few bum wires and shorts in the system. So if you want to minimize the stress of trouble shooting the RB once it is in, it is a nice piece of mind to know that the wiring at least is fresh. Just try not to overwhelm yourself and get an UNCUT harness or better still a front clip for your swap.

     

    Hope that helps

     

    Chris

    Biking questions

    in Non Tech Board

    Posted

    It really doesn't matter what type of bike you get, if you are biking hard any bike will give you an awesome workout. It more matters what kind of style you are into, if you like dirt jumps and playing around in skate parks buy a BMX bike, riding bmx is a really tough workout and is great for your arms and back along with your legs. However you have to have alot of guts to ride BMX hard and you can get pretty banged up too, also BMX bikes are slow around town and not as comfortable. If you live near some trails go buy a mountain bike and you will have a pretty darn good workout, riding a few km of trails with alot of hills and obstacles will get you in shape darn quick too. Only you can really decide what kind of bike fits your style or riding best, so you have to decide what you like. Biking as a form of exercise will only get you as fit as the effort you put into it. If you ride around your block and think your getting a work out well maybe you should find something else. I have no experience road biking but I know the guys that go one 30+ Km rides are in damn good shape again only because they work their ass off. So pick a style of bike you have fun on, expect to get banged up a bit if you are riding hard enough to get in shape and go out 4 or 5 times a week for an hour and you will see a big change in about a month. Hope this helps, Ive ridden alot of different styles and biking is a great way to get in shape if you push yourself.

     

    Cheers

     

    Chris

    Itsss Alivvve!

    in Nissan RB Forum

    Posted

    Hey Guys, definatly agree we should get an s30/rb crew together it would be fun to all meet up. As it stands we are having some problems with what we think is the TPS sensor as it is not working correctly and fighting with the 02 sensor. So basically as it stands she runs but sounds awful, now that the timing is set too it is better. Has anybody else had stuff like that happening ? Basically the engine idles a like 2k and runs like crap, I think we might be having some issues with the idle air valve so I guess its too early to ask. Gonna put the data scan on it to see what the deal is. So hopefully on the road soon!

     

     

    Cheers

     

    Chris

    240Z EFI Sump Fuel Tank Bolt-In!!

    in Fuel Delivery

    Posted

    Welding the bottom of an oilpan onto your tank works great as a very cheap way to make a sump, and looks pretty good too! Theres no problem welding on it either, the tank is steel.

    Just be careful... you're welding a gas tank, so do everything you can to make sure there are no fumes in there!

    Itsss Alivvve!

    in Nissan RB Forum

    Posted

    So we inadvertently started our RB25det powered Datsun tonight! !! My bro and I were having some really annoying issues with the wiring and tracking down some cuts that were in the harness. We were checking injector power and wouldn't you know that the car started totally by accident once we hit the key over! It ran like crap because it was missing a couple sensors and the CAS sensor wasn't set right either. so now its just fiddle work! Any how Rob and I are on cloud nine right now we are really thankful that we had Hybridz as a resource so thanks everyone ! This project has been about a year and a half with a pretty extensive rust repair job at the same time. So this was a great sound and kinda the light at the end of the tunnel. Expect more pics and a video this weekend.

     

     

     

     

     

    Chris and Rob

     

    n72604599_36899082_5932.jpg

    RB25det series 2 help, grey plug ??

    in Nissan RB Forum

    Posted

    Thanks Evan, thats a possibility. From looking on the nico forums at wiper wiring on the S1 rb25's theres around 8 wires to control them, so I think this is possibly something different.

    Im guessing you probably cut this plug out and wired things in individually, or at least thats what I've started to do. I'm going to work on the car tonight and try to trace down the other three wires, and double check all the ecu grounds etc. to see why it won't boot up, so I'll see where that takes me.

    Thanks

    Chris and Rob

    RB25det series 2 help, grey plug ??

    in Nissan RB Forum

    Posted

    Any ideas guys? So far we've got the black/red one wired to kick the starter over, the white/red one as the alternator sense wire, and the yellow/brown wired as the alternator lamp wire

    I'm just not clear on the blue, black and yellow/white wires at the moment.

    Chris and Rob

    RB25det series 2 help, grey plug ??

    in Nissan RB Forum

    Posted

    Hi guys, were at the final stretch ! Everything is wired up except this weird grey plug. We have a series two RB25DET and this little plug comes off the harness down near the starter area of the loom. Now I think there was supposed to be a relay here as one of the wires goes to the starter, which we sorted out. As it stands right now the car will turn over but the ECU is not getting power. We have wired everything else up, correctly I think except this plug. Does anyone know what the pin out of the plug is, or what the wires all do besides the big Red/black which is for the starter.

     

    Heres the plug:

    n72604599_36899084_2802.jpg

     

     

     

    Heres another pic

     

    n72604599_36899085_3095.jpg

     

     

     

    Any help would be awesome, the car now turns over but the ECU is not booting up so we are not getting power to the fuel pump relay or the injectors etc. . . .

     

    on a side note if for some reason out ECU has had the biscuit, how would we check ? At the moment it has the battery backup power on but it won't boot up, I think it is related to this plug but Im not sure.

     

    Thanks

     

    Chris and Rob

    I'm losing motivation with my RB project

    in Nissan RB Forum

    Posted

    JDM, StTrotter has some very good ideas, 90% of doing a project with so many aspects is to break it down piece by piece. It looks like your making some serious progress, Ive been in the exact same position your in and it is tough, try to pick one aspect and get it done. I would say try to get the engine to turn over or run. Once you have that going even if the drive train isn't hooked up you have huge motivation to get everything else done. Just to show you that all it takes is throwing a ton of hours, this is what my brother and I started with, both college kids with not a huge income.

     

    n72604599_33162886_7874.jpg

     

     

    * note the hole where the battery tray is and the holes in the frame rails ... This is the piece of crap we started with.

     

    about 10 months or so later we made it this far . . .

     

    n72604599_36466330_673.jpg

     

     

     

    The key is to just as Strotter said focus on one part at a time. Even if you just decide to hell with it Im going to get a functioning RB swap going and use the shell you have until you find another one.

     

    Also remember, flat black rust plaint is your best friend for hiding little mistakes especially in metal work :P .

     

    Any how man don't give up just let the project go at its own pace and don't get disheartened if it turns in to a "while Im at it" project when your done you will be happier.

     

    Cheers

     

    Chris and Rob

    Sump Plug Horror

    in Nissan RB Forum

    Posted

    Hmmmm, this is interesting. On my sump which is the rb20det pan on a rb25det, the hole you are trying to plug is plugged from the factory on mine. Its threaded and everything and even looks like it needs something, however I noticed the "side plug" your worried about after I filled mine with oil and it defiantly does not leak. So on the off chance that yours is actually plugged already, stick a screw driver in there and see what happens or put a bit of engine oil in just to see. I don't want to be the guy who states the obvious, this was just the case that I had, so maybe your fixing something that is fixed from the factory.

     

    Cheers

     

    Chris

    Best spot for Autometer oils pressure sensor ?

    in Nissan RB Forum

    Posted

    Hi guys,

     

    I have an RB25Det, which is almost done, my brother and I were wondering where the best place on the RB block is to get an accurate oil pressure reading as we want to hook up our autometer gauge. The stock oil pressure sensor is still hooked up, does it send information to the ECU or is it just for the dash ? If its just for the dash then problem solved. I was just leary of removing it if it actually sent data to the ecu on how the car runs. We thought about T-eeing off the oil input to the turbo but again wondered about an accurate signal due to the restrictor etc. Any input ?

     

    Thanks

     

    Chris and Rob

    rb25 downpipe

    in Nissan RB Forum

    Posted

    If you are thinking of getting/ buying a downpipe the best option would be building your own out of three inch stainless steel. Any decent muffler place should be able to bend one up and weld the bungs in. If your stuck on using a stock one PM me I have a stock one kicking around somewhere. . .

    Good luck

     

    Chris

    what ecu's work best

    in Nissan RB Forum

    Posted

    I can see what your saying, I should have said " who is using a standalone and the idle air control". I have heard that people can tune around it for start up etc. Just wanted some more input as not all of the standalones support idle air. Or is the idle air even a concern once the switch to a standalone is made ? I should have been more careful in my wording !

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