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Old 08-03-2021, 09:02 PM   #1
philcobill
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Join Date: Jul 2021
Location: Walworth, New York
Posts: 138
Question Ignition coils too far out of range?

Using Les Andrews's Vol., I am trying to eliminate coils as an issue with my car sputtering (but not while idling). I have three coils which all measure 6.3 volts +- to ground when installed.

The resistances of the coils are as follows: (the numbers are rounded off)

1. 8.22K ohms on both sides to the middle and 1.2 ohms between the plus and minus terminals.
2. 8.30K ohms on both sides to the middle and 1.3 ohms between the plus and minus terminals.
3. 11.60K ohms on both sides to the middle and 1.6 ohms between the plus and minus terminals.

According to Les Andrews, the coils should be 6.7K ohms to 10K ohms for both sides to the middle and 1.6 to 1.8 ohms between the plus and minus terminals. So all of my coils are out of range, either too low and too high .

Are there any potential issues with the coils based on these readings? Do I need to keep looking for a new coil? Coil 3 above is currently installed in the car.

Bill
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