Coil Ohm Range
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trailshredder
- Posts: 15
- Joined: Fri Dec 14, 2012 8:31 am
- Car: 1997 Q45, 175k miles
- Location: Mount Gilead, oh
Coil Ohm Range
97 Q45, Just did knock sensors, cleaned plenum, TB, EGR and all new gaskets including valve cover gaskets, cleaned MAF. Still have a miss/stumble at idle. Pulled all coils off and they range from 1446 to 1534. FSM says if 0 ohms, replace. I have read other posts that mention a range to be in. Any real data on this? All these coils look acceptable to me but I see where numerous people have replaced all 8 coils to fix the miss/stumble. Thoughts?
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Q451990
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- Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
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Re: Coil Ohm Range
Do you have the dreaded "random missfire" code?
Heath
Heath
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trailshredder
- Posts: 15
- Joined: Fri Dec 14, 2012 8:31 am
- Car: 1997 Q45, 175k miles
- Location: Mount Gilead, oh
Re: Coil Ohm Range
No Code, just the miss/stumble at idle.
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Q451990
- Moderator
- Posts: 11030
- Joined: Tue Jul 23, 2002 8:21 am
- Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
- Location: Columbia, SC
- Contact:
Re: Coil Ohm Range
From what I remember, all of the coil issues come with a missfire code... I'm guessing that if an ohm test was a good way to test the coil packs it would be in the service manual, but I can't swear to that.
Heath
Heath