Is the ohm rating of all 6 coil packs suppose to be the same?
09-20-2012, 01:21 PM
#1
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Location: USA
Posts: 286
Is the ohm rating of all 6 coil packs suppose to be the same?
I noticed that the 3 coil packs next to the firewall give me a rating of ~1.7 ohms while the 3 in the front ranges from 1.3 to 1.5 ohms.
Is all 6 coil packs ohm rating suppose to be the same all across the board?
And also, what is the normal ohm rating for the OEM Nissan coil pack?
Is all 6 coil packs ohm rating suppose to be the same all across the board?
And also, what is the normal ohm rating for the OEM Nissan coil pack?
09-20-2012, 02:04 PM
#2
Coils can test good and be bad or test bad and be good. Only way to tell for sure if they are good is to unplug them and see if anything changes. If the engine acts the same or similar when it is unplugged then its bad. If it acts different IE sputtering it is good. Plenty of info on this on this forum. Search around before you start a new thread next time
09-20-2012, 04:49 PM
#3
noticed you have a '99. are these the original ones for the car? '99 models have the worst coils, so I have read. So that me be your issue.
Above post is a good way to test to see if they are working, but I will add you should rev the engine as well. That way you may be able to see a difference while the car is under load.
This is what I did on mine, AFTER I switched to some '96 coils. One was bad and just unplugging them while running did nothing. Once I unplugged it and hit the gas I knew right away which one was bad.
Hope that info helps, good luck.
Above post is a good way to test to see if they are working, but I will add you should rev the engine as well. That way you may be able to see a difference while the car is under load.
This is what I did on mine, AFTER I switched to some '96 coils. One was bad and just unplugging them while running did nothing. Once I unplugged it and hit the gas I knew right away which one was bad.
Hope that info helps, good luck.
09-20-2012, 05:06 PM
#4
The 3 coils in front have different ohm ratings from the 3 in back. Thats the way it should be.
When I test my coils, I try to make the ohm ratings of the 3 similar set. For example, if I get 3 coils from the junkyard, I will ohm out all 3 in my car, front or back, get an average, then use the coil from the junkyard that best fits that average ohmage.
When I test my coils, I try to make the ohm ratings of the 3 similar set. For example, if I get 3 coils from the junkyard, I will ohm out all 3 in my car, front or back, get an average, then use the coil from the junkyard that best fits that average ohmage.
Last edited by dwapenyi; 09-20-2012 at 05:09 PM.
09-20-2012, 05:52 PM
#5
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Join Date: Dec 2007
Location: USA
Posts: 286
Coils can test good and be bad or test bad and be good. Only way to tell for sure if they are good is to unplug them and see if anything changes. If the engine acts the same or similar when it is unplugged then its bad. If it acts different IE sputtering it is good. Plenty of info on this on this forum. Search around before you start a new thread next time
I found out that pulling each plug can give false negative too if the engine isn't hot or loaded properly.
It's really frustrating to install new coils and still get the same old problems. Didn't expect the new coils to be bad.
The new coils' ohm rating ranging from 1.0 to 1.7
(3 coils near firewall are all 1.7s, 3 coils near the bumber are 1.3, 1.7, 1.7The old coils' ohm rating are 1.3s (firewall side)
front of the bumber all ranges from 1.3 - 1.6
Last edited by kroze; 09-20-2012 at 06:49 PM.
09-21-2012, 07:50 AM
#6
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Join Date: Jan 2009
Location: Thomasville, GA
Posts: 270
I did search and couldn't find the answer. I did pull each individual plug to test it out and they gave me false negative. That is why I am using a multimeter to see.
I found out that pulling each plug can give false negative too if the engine isn't hot or loaded properly.
It's really frustrating to install new coils and still get the same old problems. Didn't expect the new coils to be bad.
The new coils' ohm rating ranging from 1.0 to 1.7 (3 coils near firewall are all 1.7s, 3 coils near the bumber are 1.3, 1.7, 1.7
The old coils' ohm rating are 1.3s (firewall side)
front of the bumber all ranges from 1.3 - 1.6
I found out that pulling each plug can give false negative too if the engine isn't hot or loaded properly.
It's really frustrating to install new coils and still get the same old problems. Didn't expect the new coils to be bad.
The new coils' ohm rating ranging from 1.0 to 1.7
(3 coils near firewall are all 1.7s, 3 coils near the bumber are 1.3, 1.7, 1.7The old coils' ohm rating are 1.3s (firewall side)
front of the bumber all ranges from 1.3 - 1.6
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