Jump to content
SAU Community

Recommended Posts

I've only had my R32 GTR for a week and already its broken down!

Went for a quick run, 1st, 2nd, 3rd then backed off. Next corner the car lost all power - felt like it was running out of fuel, then it conked out altogether. Thought maybe we had run out of fuel so dropped a few more litres of unleaded in it - it started but still running like a dog - clouds of black smoke out the back and no power.

Got the car home and found the intercooler pipe had blown off the turbo side of the intercooler. It makes sense car would be running bad with intercooler pipe off since afm's would be reading zero so running very rich.

Anyway, I put the pipe back on and refilled with PULP but car still running bad - now it wont even start at all.

Did the standard investigations - check for spark and fuel and both are OK. Plugs are very black/sooty, and there is very strong smell of fuel through exhaust.

How could the intercooler pipe blow off, and why would the car run like a dog/not start once that is fixed? Seems like the computer is pumping way too much fuel through?

Can anyone give me any advice at all?

thanking you with all my newbieness

Link to comment
https://www.sau.com.au/forums/topic/55139-help-please-gtr-running-like-a-dog/
Share on other sites

how about this, get off the net so I can call you!!! I have an some suggestions.

A mate reckons the o2 sensor may have carked it from the fuel, otherwise BOV is stuck open, or Air Flow Meter didn;t like the fuel either and needs looking at. Apparently there is a screw on the side of it??

how about this, get off the net so I can call you!!! I have an some suggestions.

A mate reckons the o2 sensor may have carked it from the fuel, otherwise BOV is stuck open, or Air Flow Meter didn;t like the fuel either and needs looking at. Apparently there is a screw on the side of it??

Firstly the O2 sensor doesnt do much more than give u better fuel economy at cruising speed.

Secondly, "apparently there is a scre on the side of it" concerns me. Perhaps you shouldnt be taking to a GTR like its a Ford Meteor?

How fouled up are the spark plugs? Check for anymore leaks anywhere and if the plugs are fouled, try putting a new set in. If you can get the car started and its still missing on idle disconnect the coil packs one by one (e.g disconnect one then reconnect it). As you disconnect them the car should start running rougher until you reconnect it again. The cylinder(s) that you disconnect the coil on and it doesnt change the idle of the car is where your problem is.

Just a few quick things you can try if you havnt already. A set of copper NGK's should cost about $25 from supercheap (BCPR6ES I think they are from memory? Do a search).

EDIT: I also noticed you saying you put unleaded in it, then you put some PULP in it?? You are aware that a GTR is meant to run on 100 octane fuel and even our PULP isnt quite up to scratch? You should -NOT- be running the car on standard unleaded, not to mention giving it a "run" through 1st/2nd/3rd. If you were flogging it on normal unleaded, I wouldnt be suprised if some internal engine damage has been caused.

What are you talking about?? Its an RB26, they don't just blow up.

Like hell they dont... it takes under 5 seconds of abuse/mis-treatment for one to go bang. Its an engine just like any other car, it doesnt have super special non blowing up powers.

Im thinking, you gave it to much, pipe blew off and you keep trying to get it running. Doing that with the pipe off, stuffed up the plugs which were probably in bad shape already. Noticed the pipe and put it back. Now it still wont turn over because of the plugs.

As Amaru suggested, get a set of plugs and try. SHOULD solve the problem. And if it does, count your self lucky please get some better advice on what to do and what not to do with the GTR. Ie; not run more than 1 bar on stock turbo's etc.... or else it will be an expensive learning excercise.

I believe it was running Optimax at the time, the unleaded was a couple of litres to make sure it had fuel. Do gtrs have a 'limp home' function in the EMC?

I've just been informed that it hit a bump in the road just prior, which may have caused the 'cooler pipe to come off.

EDIT. Btw thanks for the advice guys. The gtr is a bit of a step up from a datto 1600...

Just a few quick things you can try if you havnt already. A set of copper NGK's should cost about $25 from supercheap (BCPR6ES I think they are from memory? Do a search).

QUOTE]

Yeh those plugs are great, don't even change the gap on them is what my mechanic said

this may be a stupid answer but some times the most little detail is missed , did you check all the pipes sometimes when u tighten one another might come off if one is loose there maybe another in the same condition

cooler pipes may have come off if a previous owner tamperd with them before selling .

thanks Amaru/Morgs/NA

Changed the plugs to the suggested NGK's - car started first hit of the starter. Problem seems to be resolved thanks very much guys. The car belched black smoke and soot for a while then settled down to normal.

The fouled plugs that came out were HKS S-40's - not sure weather it is worth finding another set of those rather than the copper NGK's.

For info - the NGK BCPR6ES come in BCPR6ES-11, there is no difference except the -11 designation means the plugs are preset to 1.1mm plug gap - so no adjustment of those required prior to install.

Anyone got any suggestions as to why the intercooler pipe would blow off in the first place?

The fouled plugs that came out were HKS S-40's - not sure weather it is worth finding another set of those rather than the copper NGK's.

I had a brand new set of the HKS plugs in my car when I bought it and they fouled like a bastard almost instantly, I wouldnt bother with them especially for the price you pay.

Stick to the NGK coppers and give them a clean every service (5000kms) and change every second service (10,000kms) and you should have no dramas.

Meanwhile, I noticed youre in Canberra -- were having a cruise tomorrow nite (friday) meeting at 9pm at the national museum, come past if you like.

:)

dicko, intercooler pipes will pop off all the time if the clips etc are not tight enough. Fair bit of pressure running through there. Keep with the copper plugs just change them regularly. Good to hear you've got it sorted.

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

    • I had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...