Jump to content
SAU Community

Recommended Posts

  • 2 weeks later...

just a question on dead coils...

I have all the symptoms of a dead coil

misfire on idle, misfire at low rpm, low power, high fuel consumption

but the car also stalls, do dead coil/coils usually cause the car to stall?

Also the problem seems to be gradually getting worse and worse

when it started, it was only a random misfire now and again, now even starting the car is a hassle

dont just go and change your coils if you get a missfire. i had the same thing and went looking for prices for new splitfires. Then i found a thread about cracking housings and arcing problems. I pulled my coilpacks found one TINY crack, slapped some insulating tape on it and its been perfect ever since. If you have a crack thats causing it to arc out and not a problem with the coil itself, resistance testing wont help you.

Yeah, I had my coils out on Saturday & the front 3 had hairline cracks on the front face. The back 3 coils were fine though.

Checked the resistance cold & I think my multimetre must be a little out of whack as they all measured 0.5ohms. But they were cold hence the resistance was a little lower.

New NGK BCPR6ES gapped to 0.75 but still a bit of hesitation at max load at 4500 - 5000rpm. Old plugs indicated decent mixtures but this may not be so all through the rev range.

  • 5 weeks later...

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

    • Sorry no - The sandtrap adventure ended the day, happened at the end of the last session. At that time I wasn't hearing any weird noises nor were the brakes shuddering anymore. It was only when watching the videos that I remembered I had these sounds early on!
    • Did the noise appear after your sand trap adventure? Could be something got dislodged and is playing rub rub. Even a rock wedged somewhere.
    • Is there a shroud around the tailshaft spline into the back of the box? They can rub and make a horrible noise if they are not on straight/damaged. The heat might have caused it to grow too much in one direction and rub.
    • Strangely I noticed it either disappear later in the day, or not be present. I definitely noticed when I was crawling around that open wheel thingy entering the pits (that part was audible in car). Driving home and commuting around town for example, I didn't hear it. It's plausible that it was a brake disc or something still slightly in contact. The brakes absolutely felt BAD for the first couple of sessions, huge amounts of shudder and grinding as they got up to temp - And then I actually just forgot about it as the day went on/didn't notice it. The videos were from the morning when this was more present than the afternoon/drive home when it wasn't. I've asked around and got a variety of responses including handbrake shoe contacting hub, CV joints, CB tailshaft bearing as above, and clutch input bearing. I didn't test if it disappeared when clutch was in. I haven't noticed it in any of the other videos nor did I notice it when driving to that extent. More or less hoping the microphone at the rear license plate giving some kind of clue of 'something' but it looks like "spin stuff and see if you can notice it" is the way forward here. I could be smart and use the gopro mic and re-mount it to that location to see if the sound is still present at low speed actually. Sounds like a decent test whenver I have the CBF'ness to drive the car again. Given it's almost 40C for the day of the track day and the next 3 days after, the CBF is high. All I've done since getting home is unpack the car, remove the remnants of the lip and undertray and left it there. I was surprised how well the PMU Club Racers actually worked. The brake performance on the track was absolutely fantastic, best I've ever personally used, no fade whatsoever and the bitiness was almost too good, I was scrubbing more speed off than I needed to, but I also ended up infield when I started trying to scrape off ... less speed.... so...
    • Not really, no. Anything you would do is easily reversible.
×
×
  • Create New...