Saturday, September 25, 2010
IGNITION COILS
First I obtained two different coils.
Coil 1 Specifications:
Model: Ic-13
Voltage: 12v
Primary: 1.5-1.6 ohm's
Secondary: 6-7k ohm's
Test results:
Primary: 2.1 ohm's
Secondary: 6.7k ohm's
Earth leakage test: Infinity
Coil 2 Specifications:
Model: Ciz-500
Voltage: 12v
Primary: 3-5 ohm's
Secondary: 7-9k ohm's
Test results:
Primary: 3.7 ohm's
Secondary: 6.9k ohm's
Earth leakage test: Infinity
Before you start testing always test the meter error in the multimeter you are using first, as there can be resistance in the wires or in the system of the multimeter, My multimeter had 0.1 ohm's of resistance which you deduct off your test results recorded..Both coils were out of specifications and are unserviceable.
SPEED OR POSITION SENSOR
By using a brass feeler gauge I checked the gap between the rector tip and pick up coil. My results were within specifications and didn't need any adjusting.
KNOCK SENSOR
Here is an oscilloscope reading of knock sensor!
A Knock sensor allows the engine to run with the ignition timing as far advanced as possible. The computer will continue to advance the timing until the knock sensor detects pinging or detination. At that point the computer retards the ignition timing just enough for the pinging to stop. A knock sensor also makes sure that you're getting as much power and fuel economy as is possible from your engine.
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