Jump to content
SAU Community

Recommended Posts

I had a powerfc, avcr and fmic installed, plugs changed from iridium’s to coppers and my car tuned. r34 GTT btw.

Before I had this done I had misfiring problems at 4-5k rpm, after it was done there was no misfiring.

This was about one and a half months ago, and now I have started getting the misfiring again.

Have the plugs worn out so quickly?

I can’t think what else it would be.

Link to comment
https://www.sau.com.au/forums/topic/97590-how-quick-do-plugs-wear-out/
Share on other sites

I had a powerfc, avcr and fmic installed, plugs changed from iridium’s to coppers and my car tuned. r34 GTT btw.

Before I had this done I had misfiring problems at 4-5k rpm, after it was done there was no misfiring.

This was about one and a half months ago, and now I have started getting the misfiring again.

Have the plugs worn out so quickly?

I can’t think what else it would be.

What were the plugs gapped to?

best all round gap is 0.8mm. If its not your plugs it will in most cases be your coil packs. I know this happens often on series 1's (the missfire).

Spook's skyline i would gap them to 0.8mm but if you have something different and its running fine i would not bother chaging it.

im not sure what my problem is

car shudders (feels like a miss) when fully on it changing into second, its hte only time it does it;

im about to get the car serviced, so was just oging to my mechanic to check teh gaps;

any new info on this thread? did u fix the problem...

i just got my 100k service on my r32 its got exhaust, pod, fmic and 13psi and i just had iridium plugs put in...

it has a very slight miss on idle and is now misfiring and popping in 2nd gear when i boot it.

i immediatly thought it was the plug gap and havent checked it yet. so if someone has done this and it fixed it lemme know!

cheers

i ran my car on 1.1mm iridiums at pretty much the same boost

used to get a slight miss, which got a bit worse when it got colder

i taped up the coil packs so they wouldn't arc, and it seemed to work

eventually i just replaced the coil packs with brand new splitfires, worked a treat after that

even ran ok pulling ~1bar at 1.1mm, though i'm planning on running more with my new turbo and shit

i have a series 1 r33 and i had a slight miss after 4500-5000rpm through the gears and under full load.

i fitted some iridium plugs gapped to 0.8mm and it runs perfect now.

car only has a cat back exhaust and a pod. stock boost....

I am changing my plugs tommorrow, will let you know if it fixes it.

The missfire is really bad. Goes from 4-5k all the way to redline.

This started within a week of taking my car to a workshop to have my dump pipe wrapped in heatape. They forgot to do it when I had all the original work done.

But they messed me around and were very rude and to top it off didnt even do the heat tape properly. They only did the bottom half of the dump which is not were you even need it.

I am paranoid thinking they did something to make my car missfire... Is this possible?

I just dont understand how I could have problems only 1 and a half months after new plugs were installed and the car was tuned.

Edited by noise

I run NGK 6 coppers and leave them in for ~30,000km's.

The plugs that come out at 30,000km's work just as well as the new plugs.

$16.80 for 6 from motor traders, you can't go wrong.

I've had problems with copper plugs that have done 50,000km's. No major problems, starting became difficult.

Edited by Cubes

Put in a new tank of fuel and all missfire problems seemed to have stopped????

new set of plugs are gapped at 0.8 and sitting on my kitchen table, they never got installed.

I just noticed splitfire coil packs have dropped in price on nengun, so might wait and see how it goes and get some if it keeps playing up.

I just hope it stays good. woooooo

Edited by noise

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

    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
    • Any going to watch World Time Attack at SMSP this year?
    • Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
×
×
  • Create New...