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Coil Pack gone out da windy

RYanR31

By RYanR31,
in Engines & Forced Induction

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  • 2 weeks later...
lukits01 Experienced

lukits01

Posted
Posted

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

SLY33 Mentor

SLY33

Posted
Posted

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.

cul202 Experienced

cul202

Posted
Posted

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...

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