Jump to content
SAU Community

New Plugs And Coils Car Not Running Right

polzin

By polzin,
in Engines & Forced Induction

 Share

Recommended Posts

polzin Enthusiast

polzin

Posted
Posted

ok so i put new coils on last week and worked awesome still had some spark breaking down issues but not as bad today i put in new plugs BPR5ES gap down to 0.7 now i put it all back together and fire it up it seems to be not firing on 3cyl or 6cyl i double check loose connections now i am lost :/

Ben C34 Grand Master

Ben C34

Posted
Posted

And after rereading your post, you disturbed the loom and it got worse, so that seems to point to the loom.

Is 5 heat range stock? That's a pretty hot plug. I use 7 heat range, most guys say go with 6 or 7. Not 5.

Ben C34 Grand Master

Ben C34

Posted
Posted

how i check them was pull each connetor of one at time to here to miss

That's the smart way to do it.

You can then swap coils and see if the miss moves, letting you pinpoint coil or loom.

polzin Enthusiast

polzin

Posted
  • Author
Posted

i got them off a member off here there is spark in cyl 3 going to test cyl6 after work i got a feeling it may be a boost leak but i think maybe the coil loom is on its way out so ill just pull it all apart again tomoz and see how i go with it all just a sill question say if i a plug the loom wrong like had one swapped around will this cause a miss?

MJTru Mentor

MJTru

Posted
Posted

What you might want to do is a compression test on all cylinder. After that's Ok. Take out all the coil packs and unplug them along with the injector harness. Then remove the CAS sensor and test by plugging in one coil at a time from any cylinder. Let's say number one. Turn the CAS sensor clockwise with the ignition key on holding the coil with spark plug in it . You will see the spark plug fire. That ecu channel would be good and coil and plug would be good as well if spark is present. Repeat this on all coil and ecu channels. You can use this method for injectors, but a noid light would be safer and easier. I have had this happen to me and it was the plug on the ecu.

Hope it helps mate.

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

    • soviet_merlin
      WGNC34 - floor mats

      By soviet_merlin · Posted

      Checked with amayama and nope, the full S2 manual set is not available anymore. Unsurprising, but still disappointing as the ? on availability gave a glimmer of hope.
    • joshuaho96
      Tomei gasket

      By joshuaho96 · Posted

      I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • GTSBoy
      What brakes on R34 GTT(Europe)

      By GTSBoy · Posted

      The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Marek
      Hi everyone.

      By Marek · Posted

      Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
×
×
  • Create New...