Plug Wires - NoPistons -Mazda Rx7 & Rx8 Rotary Forum

2nd Generation Specific 1986-1992 Discussion

Plug Wires

Old 04-21-2003, 09:23 PM
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Location: Fort Worth, Texas
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How can you tell if your spark plug wires need to be changed? Can you check the resistance using a meter? I want to know because after my rebuild, they used the wires that were already on the car. Now, these wires are old (10 years) and they sat for over 3 with no use to them. The car seems to run well but I wonder if it could run better with new wires. As I am writing this post I feel I am answering my own question. Not a very expensive thing to change out even if these wires are not bad. What plug wires would you recommend for an '87 GXL?

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Old 04-21-2003, 09:28 PM
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you can measure the resistance. they usually give a spec in kohms per foot, but you can als make sure they are all close to the same. the stock ngk's are good, and affordable

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Old 04-21-2003, 09:32 PM
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the FSM tell you the acceptable resistance.

Its out in my car right now so I cant check it for you.
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Old 04-21-2003, 09:34 PM
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It's 16 kohms per meter.
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