Jump to content
SAU Community

R34 Gt Ignition Problem

durty 4

By durty 4,
in Engines & Forced Induction

 Share

Recommended Posts

durty 4 Rookie

durty 4

Posted
Posted

Hey all,

New to the forum but have been a long time lurker.

Have been faced with a strange problem on my 1999 R34 GT. Sometimes when ive been starting the car the MIL (engine check light) comes on and the car tends to shake a bit more than normal, noticing this i realised that it runs on 5 cylinders instead of 6 when it lights up. :)

However the light will only light up once or twice a week and the car runs fine (all 6 cylinders working) whenever I happen to start the car and the light does not show up.

I managed to get the ECU scanned recently when it lit up and the error code 21: Ignition Signal Circut came up.

Is it likely that this is due to a faulty coilpack or related to the crank angle sensor?

Has anyone else had a problem similar to this?

cheers

matt

Link to comment
https://www.sau.com.au/forums/topic/292294-r34-gt-ignition-problem/
Share on other sites
666DAN Grand Master

666DAN

Posted
Posted

Most common R34 problem in the world, replace the coil packs as they all die eventually and you'll be running on less and less cylinders until it won't go.

I don't know of a single R34 that has not had this issue.

James Kelsey Newbie

James Kelsey

Posted
Posted

Just a word on this: I went a cheapo route and just bought one new Nissan coilpack before I learned about those coilpacks and regretted it. I ended up having to go back and buy a full set of 6 Splitfires. Haven't had a problem since... and now I'm having the same problem on the "new" 25GTt I just bought - need to go tomorrow and buy another set. :cry:

skylinelova07 Contributor

skylinelova07

Posted
Posted

Hey matt, I had this problem when I was helping my brother switch engines in his Datsun 1600. We were running on 3 cylinders instead of four. This was due to both electrical problems but we also found out that we had a couple of vacuum leaks which of course does not allow enough pressure for the pistons to work properly. However, from the sounds of things, it seems that your problem may be electrical (coils).

Good Luck with it.

Luke.

R34 -_- Community Regular

R34 -_-

Posted
Posted

iv replaced all my coils about 8,000ks ago and now im getting a missfire in the low rev range while cruising, but the check light DOESN'T come on like it did with the faulty coils. spark plugs maybe?

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

    • SeanR32GtSt
      Hypergear Turbochargers and High flow Services Development thread

      By SeanR32GtSt · Posted

      I know this one’s the BB one. My tuner did make mention about the actuator. I am curious about the VCT as well
    • hypergear
      Hypergear Turbochargers and High flow Services Development thread

      By hypergear · Posted

      Might also needs a stronger actuator with the right preloading. With older 2019 built bush G3 units, BB upgrade or 21U housing down size makes a pretty decent gain in response as well. 
    • Desean Strickland
      Need help/advice with bearing taper clearance, eccentricity and arp studs.

      By Desean Strickland · Posted

      Hey lads  so im finally putting together my rb30 forged bottom end and ran into an issue. I measured my main bearing clearance with arp main studs torqued to 60 ft-lbs using ACL H series STD size bearings and standard, un-ground crank shaft journals and got an oil clearance reading of about 1.3 thou measuring straight up and down and about 2.8 thou measuring at a 45 degree angle (just above and below the parting line). My machine shop said they measured the main tunnel and it was all within spec (they didnt say the actual measurement) and to go with a standard size bearing, which i have done and the clearance is too tight, I'm guessing because of the extra clamping force from the arp studs distorting the main tunnel. I was wanting to run about 2.5 thou main bearing clearance.  My questions are: 1. could i just use the HX extra 1 thou clearance ACL bearings? that would fix my straight up and down clearance making it about 2.3 thou, but then would the side to side clearance be too big at around 3.8 thou? 2. what actually is the recommended main bearing clearance for measuring near the parting line / side to side. i know its supposed to be bigger as the bearing has some eccentricity built into it but how much more clearance should there be compared to the straight up and down measurement? at the moment there is about 1.5thou difference, is that acceptable or should it be less? 3. If i took the engine block + girdle back to the machine shop and got them to line bore the main tunnel (like i told them to do the first time, but they said it didnt need it) what bearing size would i buy? the STD size bearing shells already slide in fairly easily with no real resistance, some even falling out if i tip the girdle up-side-down. If im taking material out of the main tunnel would i need a bearing with extra material on the back side to make up for it? this is probably confusing af to read so if something doesn't make sense let me know and ill try explaining in a different way. My machine shop doesn't come back from christmas break until mid January, hence why i'm asking these questions here. TIA for any help or info 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      I bought the model back in Japan in Feb. I realised I could never build it, looked around for people who could build it, turns out there's some very skilled people out there that will make copies of 1:1 cars or near enough. I'm not really a photo guy... but people were dragging me in a group chat for the choice of bumper as someone else saw the car before it was finished as they are also a customer of that shop. I took the photo in the above post because I was pretty confident that the lip would work wonders for it. Here's some more in-progress and almost-done pics. It gives a good enough idea as to what the rear looks like!   I have also booked in a track day at the end of January. Lets all hope that is nothing but pure fun and games. If it's not pure fun and games, well, I've already got half an engine spare in the cupboard 
    • soviet_merlin
      Mistakes were made, my R34 Story

      By soviet_merlin · Posted

      Well, do ya, punk? Seriously though, let's fu<king go! The colour and kit looks amazing on the car. Do you have any shots from the rear? I don't quite follow how the model came around. You bought the white kit and he modified it to match your car? Looks nuts either way!
×
×
  • Create New...