My civic 99 started slight jerks in 2nd gear when accelerated slowly but jerks were very mild. So I decided to check the spark plugs, wires & ignition coil.
The spark plugs were ok.
Wires resistance was within specs as per the service manual.
But the ignition coil resistance check failed.
Here is how I opened the distributor & checked the reaistance
Removed the cover
The 3 terminals 4 resistance check
The primary winding resistance was 0.7 ohm which 1.5ohms more than the specs
The secondary winding resistance was 10.5 k ohm which is too low as per the specs on service manual. It's a Hitachi coil. Here is the copy of service manual
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