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IGNITION COIL RESISTANCE SPECS

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Old 04-27-2013, 07:24 PM   #1
jbd [OP] jbd is offline
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IGNITION COIL RESISTANCE SPECS

Folks, I am having a rough idling, resulting in low power on my tacoma 98, v6. I test drove it and found the check engine light flashing sveral times but will not stay on. (So unable to isolate any error occuring).
I checked the following:
piston compressions- ok; spark plugs- ok, spark plug cables-ok. No vacuum leak, PVC-ok
But my ignition coils resistance specifications are out of specs according to manual: All 3 ignition coils : Primary coils are reading around 1.5 ohm and 2ndary are above 10 k ohm.
Specifications for primary coil should be <1.23 ohm and 2ndary should be <18.8 ohm.
(Note the big difference of secondary coil actual reading is 10 K ohm and specs should be no more than 18.8 ohm).

My question- has anyone had similar problem (rough idling/loss of power) and replacing ignition coils resolve the issue? If not coil, what was the resolution?

I plan to replace ignition coils but was also curious to know if anyone had similar issues out there and what was the resolution.

Thank you in advance.
John
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Old 06-24-2013, 02:52 AM   #2
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Replacing coils

Did replacing your coils help, I'm having the exact same problems with my 98 tacoma
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