Jump to content
SAU Community

Missfire Boost@4500-5500 RPM - The Answer! (for me at least!)


Recommended Posts

  • 7 months later...

Taping trick worked perfectly for me!

After finally finding the factory hose with restrictor in it for 7psi, once the car was hitting 7psi, was having massive amounts of missfire which wasn't there under lower boost. Pulled the coils out, clear arcing signs on the side of the coil (no cracks though). Gave them a tape up, and now it happily pulls right through!

Hopefully it lasts!

  • 2 months later...
  • 5 months later...
  • 7 months later...
  • 2 months later...

Had a thought today, instead of taping the coils up has anyone tried plastidipping them?

I think they originally designed it as a insulation coating for tools, and it seems pretty heat resistant so I'm sure it would work

It seems the tape doesn't stick well over time, and the ability to layer up the plastidip to get a thick coating means it should be pretty durable?

  • 4 months later...

Don't forget you can always use heat shrink down the "shaft" to the plug,

and/OR make up a set of Acetal coil plates - can't give this mod enough praise!!

I had a problem with misfiring but ONLY under full boost, 24psi, (12psi was fine)

turned out my coil packs were shorting to earth so I made up some Acetal

mounting plates and the miss is GONE, car has never run smoother!!

I got the idea from an overseas forum where this fix was solving heaps of problems for people.

I was actually thinking of making some more up If people might be interested in purchasing them?

IMG_3698e.jpg

Edited by 85URE
  • Like 1

Guess that depends on each persons situation, both financially and physically.

Every coil pack breaks down over time, at this point in time my problem was the coil packs earthing out,

By installing the plates, at a quarter of the cost vs new packs, it did remove my problem.

also allowing better cooling for the packs as the alloy brackets transfer more heat that is responsible for destroying them.

  • 2 years later...

Wher is it that you guys tape up? I recently got new coils but stil habe this problem, have tried everything that i can think of and have found online abut the peoblem exept silicon/taping the cpims (because they are brand new) 

 

  • Like 1

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



  • Latest Posts

    • Sorry to hear your HFM BM57 was faulty,  did you contact HFM I would hope they would be at least grateful for the information if there was some sort of manufacturing fault, you would hope they would be sympathetic even if your item was 2 years old if it had never been fitted. May I ask where it leaked from ?
    • Cats are called Bella, and Donna...  Like that poisonous plant And I remember your 2 monsters, I remember making a little bit of wee when you let them out... LOL I have already installed cat doors into the laundry where their kitty litter is, and the sun room, apart from the cat doors there's not going to be any permanent mounted stuff on the interior walls (interior doors are cheap and easy to replace) I will get a outdoor cat cage thingie once I finish the landscaping out back... https://catnip.com.au/ The only off limit areas are the main bedroom and the gym room....but, currently the cats are curled up in bed, in the main bedroom with the Mrs.....LOL, the off limits for the kittens to the main bedroom lasted about 5 minutes with Jackie I currently only have 1 free standing huge cat tree multiple level scratching post thingie in the lounge room, but, I will be getting another one soon now that I'm happy with the furniture layout in the back room and have a perfect spot for it  
    • All of this is making it seem clear that running the Coppermix twin was definitely the way to go, especially in hindsight with how insane tariffs have gotten and the strength of the USD vs yen at the time.
    • That sounds like no chance of even importing one for road registering then Now I see why Duncan wants to check LHD rules for Targa...   I wonder how "bolt in" the AWD would be if you got one imported from the US and swapped it to an AUD one
    • Not to mention they drive like a bucket of bolts! yuck!
×
×
  • Create New...