Jump to content
SAU Community

Who Wants To Play Detective

sanger

By sanger,
in Engines & Forced Induction

 Share

Recommended Posts

sanger Community Regular

sanger

Posted
  • Author
Posted

OK guys we can rule out intercooler pipes blowing open under presure as these were all removed and doubble checked yesterday..... Still haven't done 02 sensor or fuel reg yet, hopefully these will be done today but i am at the mercy of the mechanic who just happens to be my girly's old man and for some reason like doing paying jobs more???????? :)

CEF11E Veteran

CEF11E

Posted
Posted

money still on BOV :)

undo the ricirc pipe block it off and then cover the snout of the BOV with lots of duct tape so it will not leak. go for a drive and see if the car is still doing it :D

Medium Dave Proficient

Medium Dave

Posted
Posted

I had similar problems a while back, it turned out to be the idle control valve thing under the throttle body (I cant remember the name correctly) but I pulled that out and replaced it and bam! all my problems went away and fuel economy returned. This was of course after I checked just about everything else... - I think thats what 1400r and JVP-R32 are talking about.

sanger Community Regular

sanger

Posted
  • Author
Posted
I had similar problems a while back, it turned out to be the idle control valve thing under the throttle body (I cant remember the name correctly) but I pulled that out and replaced it and bam! all my problems went away and fuel economy returned. This was of course after I checked just about everything else... - I think thats what 1400r and JVP-R32 are talking about.

Thanks ill add it to the list!!!

sanger Community Regular

sanger

Posted
  • Author
Posted

ok here is an update.... It has been worked out today that one of the temperature sensors was giving a dud reading because of a caroded terminal, so we are replacing some of the damaged terminals and cleaning up some of the others. That has apparently fixed the dud idle!!! Horay for that as it has been like that for nearly a year...... But as for the power and turbo problems!!! that has been tracked down to the waste gate opening early hence the lag but the turbo sounded like it was spooling fine. Now for my next question...... Would this be a buggered actuator? or i believe there is a spring that pulls the wastegate into the closed position? is that kinda right or am i just tripping.

Thanks again for all the help guys! :D

WilYawn Enthusiast

WilYawn

Posted
Posted (edited)
I'VE HAD A LEAK IN MY INTERCOOLER FOR ROUGHLY 4 MONTHS NOW(WONT EVEN HANDLE 7PSI)AND IVE HAD NO PROBLEMS WITH STALLING OR ANYTHING LIKE THAT!! ID LIKE TO KNOW HOW MANY PEOPLE IN HERE ACTUALLY HAVE ANY MECHANICAL SKILLS.

If you read one post up he says the stalling prob is solved, it was caused by a caroded terminal on the temp sensor...

Edited by WilYawn
sanger Community Regular

sanger

Posted
  • Author
Posted
Block the wastegate shut and take it for a test drive, keep an eye on the boost meter though. Dont want it to go boom!

Yeah thanks thats what we are going to do.... dont have a boost guage other than the factory one though. Should probably invest in one. But yes i dont intend on testing anything to the fullest so i will be keeping a very close eye on how far i actually push!!!! im thinking keeping hard acceleration below about 3500 4000 rpm should be enough to tell me all i need to know and hopefully keep boost at sane levels. Factory boost cut should still be in place as far as i know unless it was removed previously in japan. I aim not to test this though..... :D

rob82 Mentor

rob82

Posted
Posted
I'VE HAD A LEAK IN MY INTERCOOLER FOR ROUGHLY 4 MONTHS NOW(WONT EVEN HANDLE 7PSI)AND IVE HAD NO PROBLEMS WITH STALLING OR ANYTHING LIKE THAT!! ID LIKE TO KNOW HOW MANY PEOPLE IN HERE ACTUALLY HAVE ANY MECHANICAL SKILLS.

Lets hope you havn't glazed the bores by having a IC leak.

Cubes Grand Master

Cubes

Posted
Posted
I'VE HAD A LEAK IN MY INTERCOOLER FOR ROUGHLY 4 MONTHS NOW(WONT EVEN HANDLE 7PSI)AND IVE HAD NO PROBLEMS WITH STALLING OR ANYTHING LIKE THAT!! ID LIKE TO KNOW HOW MANY PEOPLE IN HERE ACTUALLY HAVE ANY MECHANICAL SKILLS.

If you've had a IC leak for 4 months then you clearly don't have any. LMAO!!! :D

jeffworld2 Veteran

jeffworld2

Posted
Posted (edited)

when one of the cooler pipes close to the turbo outlet ( the first join after the elbow) blew completely off in an r32 i was doing an intercooler install on, the car ran fine but stalled when coming to idle. if you held it at 1100 it would run. there was a good 10/20mm gap between the 2 pipes at the closest point, but they were still facing each other. the turbo was basically "fanning" the unmetered intake.

in less extreme cases, if some boost is lost in the cooler pipes then it has already been metered and fueled for, so you are always going to be too rich for the actual air in the cylinders.

Edited by jeffworld2
sanger Community Regular

sanger

Posted
  • Author
Posted

Hey guys, after scanning some of the other threads some people think that cleaning the injectors could be a good idea for fixing idle issues???? Any one got any thoughts on this??? Also how much would it cost roughly to get the injectors cleaned???? Could be an idea to do them anyway cause they certainly haven't been done since the car has been in australia running on our sh$%ty fuel!!!!

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • drifter17a
      R34 power steering

      By drifter17a · Posted

      I have done smoke test and can’t see any leak on high or low side.   checked pump and fluid can flow through. Removed the high pressure from steering and did smoke test and same on low side, no leak.   puzzled. Thinking why if it was all ok it suddenly went as car was off road for a year. Don’t want to disassemble pump yet as i can see fluid / air( compressor) can flow through with no issues
    • The Bogan
      Mistakes were made, my R34 Story

      By The Bogan · Posted

      Which manifold mate? Meanwhile......Mark is wondering how bonnet vents would look on the NC 🤣
    • luke gtr
      Hello Everyone

      By luke gtr · Posted

      Actually,  just remembered there should be info in the threads (somewhere) about swapping to a manual steering rack and deleting power steering all together. 
    • 180 wanabe
      Thinking of getting a Q50 300hp and just tuning it instead of getting the Q50 Red or 400R

      By 180 wanabe · Posted

      Also had a look at the Nissan JP website looks like the 400r has a slightly shorter ratio than than the regular V37 3.133 VS 2.937 which from a guy who has driven both 3.69 vs 4.11 ratios in the S15 is bugger all. Seems that the AUTO Z runs the same ratio as the 400R but can't find any info as to if its an open or LSD? More often than not the auto LSD is open
    • joshuaho96
      R34 power steering

      By joshuaho96 · Posted

      Do not replace the power steering lines with this stuff. If it's anything like the Chase Bays stuff it will leak and be worse than stock. The reason why the reservoir is on the LH/passenger side of the car is because that's just where the reservoir was most convenient to fit. Don't overthink this stuff. The intake/cold side of the engine is pretty busy on these cars. And again, the hardpipe is designed to be a janky power steering cooler. In theory you can replace it with a real power steering cooler but that's really only for track use where boiling the fluid is a distinct possibility. Start with the low pressure lines feeding the pump from the reservoir. Make sure there isn't a bunch of junk in the reservoir filter. Be careful to not get ATF all over the engine bay. I hate dealing with ATF spills, you can clean it up and the slightest crevice will still release more oil that can still drip over time. You also want to inspect for leaks before you make a mess and can't tell what happened. Most likely you have a leak somewhere that is allowing fluid out and air in. Failing that it's allowing air in but not fluid out. Only place I can really see that happening is on the low pressure side because the pump will pull a slight vacuum to draw fluid in. Everything after the pump is high pressure or lower pressure, approaching atmospheric by the time it returns to the reservoir.
×
×
  • Create New...