Jump to content
SAU Community

Recommended Posts

Howdy

I have a very peculiar issue with my car at the moment.

On Christmas day, I was driving home and coming up a large Hill when suddenly my car stopped accelerating and slowly came to a halt. I thought possibly I was low/ran out of fuel, so luckily it rolled into a fuel station. I slapped $20 in, started her up and away I went for about 500m when the same thing happened again. That is, the car is accelerating and driving normally, then all of a sudden all engine power instantly disappears and the car comes to a stop (dash lights/stereo etc. continue to function as normal). After about ten minutes of trying to start/letting it sit, she started up again and I managed to get her home.

Thinking it was something electrical, I went over the entire wiring loom and came across a couple of minor things that seemed unlikely to be the cause, but I gave it a go. I took her out again and she was fine. Couple of weeks later I did a track day. Car took a beating and handled it like a Queen all day (a hot day too). Coming home, and this time up a different but steep hill, the exact same thing happened again. I let her cool down for about 30 minutes (as she refused to start) and once cool she fired up and I got home.

Have barely driven the car since, but these are the symptons:

- car loses all engine power instantly
- seems to happen after a long drive when car is warm
- only seems to happen when coming up hills
- does not appear to be electrical

It is tough to replicate the failure as it only seems to happen coming up hills. However, the couple of times I have got it to re-occur, I have checked lift and fuel pump and watched fuel pressure gauge. My old man believes it is possibly the fuel pump (current 044 is quite noisy), but as I said, difficult to diagnose as it happens so randomly.

Fuel set up is pretty simple: tank > filter > lift pump > swirl pot > 044.

I have replaced the lift pump and checked the pick-up, but all appear OK. It has done it one more time after a long cruise, whilst driving along the freeway (and not up a hill) and on a relatively cool day. Fortunately though it came back to life after about three seconds and I made it all the way home.

Some people have suggested ECU connection, CAS and fuel pump. Any thoughts are appreciated. Cheers.

Link to comment
https://www.sau.com.au/forums/topic/445982-random-stalling/
Share on other sites

You say it mostly happens on hills so I am thinking its something with the fuel system, maybe the pump is not installed/plumbed up properly and starts sucking up air or dropping pressure.

Is this in an R33, cause I don't think 044's are a direct fitment meaning it may have not been done properly.

Edited by AngryRB
Link to comment
https://www.sau.com.au/forums/topic/445982-random-stalling/#findComment-7347784
Share on other sites

I had similar issues two cars I imported almost 10 years ago. One was due to clutch fan issues, the car basically overheats and shut. Its a common Nissan problem which the Water temp gauge rise no higher then halfway point, so the driver could not be notified in the event of over heating.

Other car with similar issue was due to an lose timing belt, probably skipped few tooth or what not, the issues was resolved after a new belt was installed.

Link to comment
https://www.sau.com.au/forums/topic/445982-random-stalling/#findComment-7348252
Share on other sites

  • 3 weeks later...

Im having almost exactly the same issue. My problems started after the car sat idle for a few months while I was overseas.

At first it seemed like it would only occur when running up a hill, but not every hill, just say one in every 50 for example, but it seems like the problem has evolved as it now occurs on any or no incline. This also happens randomly at any speed, and/or anywhere in the rev range.

In the same way as cactus stated, when the car runs, it drives like a dream. But the cutting of power is completely random. Its pretty safe to say that the car will work fine for at least 10 minutes at the start of the day, but anywhere from 10-30mins of driving, at some stage the power will cut. It may just be for a second or two and then continue on, or like what happened on the freeway the other day. Driving at 100, power cut, never came back, rolled to the emergency lane.

Sometimes you can restart the car immediately and continue on your merry way, but what is happening more often now is you have to sit for a few minutes before it will restart. I have a power fc with hand controller, and there is nothing crazing going on when I watch the voltage readings from the AFM. There also no coughing or hesitation of the engine, so its not like the fuel pressure is simply dropping, its almost like the ignition gets cut. My water temp is sitting at around 70º normally, but its not like its spiking at the points of stalling.

The car has had its coilpacks replaced, new spark plugs, cleaned all ignition loom connections, AFM sensor and connector cleaned, fuel filter replaced and a new air filter for good measure. All of which has made zero difference. The car is running the standard fuel pump, but I do have a spare 040 kicking around that I will swap when I get the chance, but like I said it before the power loss is to instantaneous, seeming more like its on the electrical side of things.

I'm really hoping someone can shed some light on this as its becoming quite an inconvenience.

Cheers

Link to comment
https://www.sau.com.au/forums/topic/445982-random-stalling/#findComment-7363867
Share on other sites

Ive had similar issue with an rb30et

It started as a random miss every few drives, usually happened when hot/in traffic.

I assumed it was a failing coil, due to hot conditions etc.

But after a coil change and no fix!

It then evolved into a random engine stopping like yours, it would be 100% good then just like it was turned off, come to a stop, wait a few mins then all ok again, no fault codes either.

Then one day it just failed to start, followed by cas fault code.

Replaced the cas, never faulted again.

Link to comment
https://www.sau.com.au/forums/topic/445982-random-stalling/#findComment-7363956
Share on other sites

  • 3 months later...
  • 2 months later...
  • 3 weeks later...

Hi had a similar problem with my rb30 powered vk commodore like you I replaced the afm and it fixed it for about 6 months and it happened again so I tried a afm from my mate and away it went perfect until I changed it back I fornd I had to restrict the return fuel line to the tank and it ran perfectly again I ended up fitting a tomei external fuel regulator to the vehical witht the same afm and that was about 5 years ago and never had a problem since and im still using the same afm.

Link to comment
https://www.sau.com.au/forums/topic/445982-random-stalling/#findComment-7487053
Share on other sites

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

    • Can perhaps see how the R33 appreciators would think so.  
    • Thanks, I removed the fuse and the relay from the car and made my own circuit with them to test them with a test bulb.  I will look for the wiring diagram and go from there.
    • Jdm DC2R is also nice for a FF car compared to the regular hatches of the time.
    • Now that the break-in period for both clutch and transmission is nearly over I'd like to give some tips before I forget about everything that happened, also for anyone searching up how to do this job in the future: You will need at least 6 ton jack stands at full extension. I would go as far as to say maybe consider 12 ton jack stands because the height of the transmission + the Harbor Freight hydraulic platform-style transmission jack was enough that it was an absolute PITA getting the transmission out from under the car and back in. The top edge of the bellhousing wants to contact the subframe and oil pan and if you're doing this on the floor forget about trying to lift this transmission off the ground and onto a transmission jack from under the car. Also do not try to use a scissor jack transmission lift. You have to rotate the damn thing in-place on the transmission jack which is hard enough with an adjustable platform and a transmission cradle that will mostly keep the transmission from rolling off the jack but on a scissor lift with a tiny non-adjustable platform? Forget it. Use penetrating oil on the driveshaft bolts. I highly recommend getting a thin 6 point combination (box end + open end) wrench for both the rear driveshaft and front driveshaft and a wrench extension. These bolts are on tight with very little space to work with and those two things together made a massive difference. Even a high torque impact wrench is just the wrong tool for the job here and didn't do what I needed it to do. If your starter bolts aren't seized in place for whatever reason you can in fact snake in a 3/8 inch ratchet + 6 point standard chrome socket up in there and "just" remove the bolts for the starter. Or at least I could. It is entirely by feel, you can barely fit it in, you can barely turn the stupid ratchet, but it is possible. Pull the front pipe/downpipe before you attempt to remove the transmission. In theory you don't have to, in practice just do it.  When pulling the transmission on the way out you don't have to undo all the bolts holding the rear driveshaft to the chassis like the center support bearing and the rear tunnel reinforcement bar but putting the transmission back in I highly recommend doing this because it will let you raise the transmission without constantly dealing with the driveshaft interfering in one way or another. I undid the bottom of the engine mount but I honestly don't know that it helped anything. If you do this make sure you put a towel on the back of the valve cover to keep the engine from smashing all the pipes on the firewall. Once the transmission has been pulled back far enough to clear the dowels you need to twist it in place clockwise if you're sitting behind the transmission. This will rotate the starter down towards the ground. The starter bump seems like it might clear if you twist the transmission the other way but it definitely won't. I have scraped the shit out of my transmission tunnel trying so learn from my mistake. You will need a center punch and an appropriate size drill bit and screw to pull the rear main seal. Then use vice grips and preferably a slide hammer attachment for those vice grips to yank the seal out. Do not let the drill or screw contact any part of the crank and clean the engine carefully after removing the seal to avoid getting metal fragments into the engine. I used a Slide Hammer and Bearing Puller Set, 5 Piece from Harbor Freight to pull the old pilot bearing. The "wet paper towel" trick sucked and just got dirty clutch water everywhere. Buy the tool or borrow it from a friend and save yourself the pain. It comes right out. Mine was very worn compared to the new one and it was starting to show cracks. Soak it in engine oil for a day in case yours has lost all of the oil to the plastic bag it comes in. You may be tempted to get the Nismo aftermarket pilot bearing but local mechanics have told me that they fail prematurely and if they do fail they do far more damage than a failed OEM pilot bushing. I mentioned this before but the Super Coppermix Twin clutch friction disks are in fact directional. The subtle coning of the fingers in both cases should be facing towards the center of the hub. So the coning on the rearmost disk closest to the pressure plate should go towards the engine, and the one closest to the flywheel should be flipped the other way. Otherwise when you torque down the pressure plate it will be warped and if you attempt to drive it like this it will make a very nasty grinding noise. Also, there is in fact an orientation to the washers for the pressure plate if you don't want to damage the anodizing. Rounded side of the washer faces the pressure plate. The flat side faces the bolt head. Pulling the transmission from the transfer case you need to be extremely careful with the shift cover plate. This part is discontinued. Try your best to avoid damaging the mating surfaces or breaking the pry points. I used a dead blow rubber hammer after removing the bolts to smack it sideways to slide it off the RTV the previous mechanic applied. I recommend using gasket dressing on the OEM paper gasket to try and keep the ATF from leaking out of that surface which seems to be a perpetual problem. Undoing the shifter rod end is an absolute PITA. Get a set of roll pin punches. Those are mandatory for this. Also I strongly, strongly recommend getting a palm nailer that will fit your roll pin punch. Also, put a clean (emphasis on clean) towel wrapped around the back end of the roll pin to keep it from shooting into the transfer case so you can spend a good hour or two with a magnet on a stick getting it out. Do not damage the shifter rod end either because those are discontinued as well. Do not use aftermarket flywheel bolts. Or if you do, make sure they are exactly the same dimensions as OEM before you go to install them. I have seen people mention that they got the wrong bolts and it meant having to do the job again. High torque impact wrench makes removal easy. I used some combination of a pry bar and flathead screwdriver to keep the flywheel from turning but consider just buying a proper flywheel lock instead. Just buy the OS Giken clutch alignment tool from RHDJapan. I hated the plastic alignment tool and you will never be confident this thing will work as intended. Don't forget to install the Nismo provided clutch fork boot. Otherwise it will make unearthly noises when you press the clutch pedal as it says on the little installation sheet in Japanese. Also, on both initial disassembly and assembly you must follow torque sequence for the pressure plate bolts. For some reason the Nismo directions tell you to put in the smaller 3 bolts last. I would not do this. Fully insert and thread those bolts to the end first, then tighten the other larger pressure plate bolts according to torque sequence. Then at the end you can also torque these 3 smaller bolts. Doing it the other way can cause these bolts to bind and the whole thing won't fit as it should. Hope this helps someone out there.
×
×
  • Create New...