Bad Ignition Coil?
#1
Bad Ignition Coil?
I posted this on another forum and was recommended an ignition coil test. My throttle gets lazy often, especially with a hot engine. My gas mileage dropped and the exhaust will get much louder when I lose the power. No exhaust issue. You can look at my other threads if you're interested in more detail.
Heres the part I need to know about:
I did the test described in the FSM. I should mention my multimeter is fully functioning. I just used it for volts and ohms to calibrate my TPS.
It said to turn the ignition off and test the A (+) terminal and B (-) terminal then check A and the winding terminal.
First I checked with the ignition off. For both tests what would happen was I get a spike in ohms and then it would quickly drop to 0.
So although the FSM said ignition off, I turn it on (not with the engine on of course) and...
Set to 20 ohms I checked the points A and B. I got 1.2 ohms.
Set to 2k ohms, checked A and the winding terminal and could not get anything. 0.
I did this several times and would only get a reading from A and B with the ignition on.
This would mean that I would be having much more than acceleration problems right? Remember that my multimeter is fully functioning and I had it set on ohms.
It seems like the coils bad but what do you guys think?
Thanks
Heres the part I need to know about:
I did the test described in the FSM. I should mention my multimeter is fully functioning. I just used it for volts and ohms to calibrate my TPS.
It said to turn the ignition off and test the A (+) terminal and B (-) terminal then check A and the winding terminal.
First I checked with the ignition off. For both tests what would happen was I get a spike in ohms and then it would quickly drop to 0.
So although the FSM said ignition off, I turn it on (not with the engine on of course) and...
Set to 20 ohms I checked the points A and B. I got 1.2 ohms.
Set to 2k ohms, checked A and the winding terminal and could not get anything. 0.
I did this several times and would only get a reading from A and B with the ignition on.
This would mean that I would be having much more than acceleration problems right? Remember that my multimeter is fully functioning and I had it set on ohms.
It seems like the coils bad but what do you guys think?
Thanks
#4
haha,
ignition coil mustve been shorted out. My readings werent incorrect, 0 ohms showed too low resistance. The problems gotten better so far since I replaced the coil.
Im waiting for the ecu to adapt completely and see if the issue comes back.
ignition coil mustve been shorted out. My readings werent incorrect, 0 ohms showed too low resistance. The problems gotten better so far since I replaced the coil.
Im waiting for the ecu to adapt completely and see if the issue comes back.
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