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  1. 05-20-2010, 02:13 PM #1
    charlesss
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    testing spark pug wires

    when testing for plug wires what are they supposed to read ??
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  2. 05-20-2010, 02:30 PM #2
    sunsetorangess
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    http://www.ls1.com/forums/showthread.php?t=31657

    Your checking for Resistance
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    2001 SS, Its not the car its the Driver that matters....
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  3. 05-21-2010, 04:38 AM #3
    charlesss
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    ok then what should stock wires be reading at.
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  4. 05-21-2010, 08:00 AM #4
    SSTODD
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    Quote Originally Posted by charlesss View Post
    ok then what should stock wires be reading at.
    Stock maybe around 400-500 ohms, my new MSD's measured 30 ohms for comparison to OEM vs. MSD.
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  5. 05-21-2010, 10:47 AM #5
    charlesss
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    mine read 288 ohms
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  6. 05-22-2010, 06:20 AM #6
    charlesss
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    can someone here please explain what the number on the spark plug body means. 41-974.. I replaced the original factory plugs 1 year ago, went with ac delco's #41-985.. had a misfire on cylinder # 2 took plug out cleaned it car ran alot better.. and now when i go on ac delcos webisite.. it gives me a cross reference # 41-110 also 41-952 just a bunch of different #s i want to find 41-974... or an equivalent of that plug....
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  7. 05-26-2010, 10:30 AM #7
    bryceslu
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    Quote Originally Posted by charlesss View Post
    can someone here please explain what the number on the spark plug body means. 41-974.. I replaced the original factory plugs 1 year ago, went with ac delco's #41-985.. had a misfire on cylinder # 2 took plug out cleaned it car ran alot better.. and now when i go on ac delcos webisite.. it gives me a cross reference # 41-110 also 41-952 just a bunch of different #s i want to find 41-974... or an equivalent of that plug....
    The 41-110 is the OEM iridium i believe. that replaced the 41-985. should be gapped at .040
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  8. 05-26-2010, 05:49 PM #8
    charlesss
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    Quote Originally Posted by bryceslu View Post
    The 41-110 is the OEM iridium i believe. that replaced the 41-985. should be gapped at .040
    aren;t they supposed to be gapped at .060
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  9. 05-26-2010, 06:20 PM #9
    Cutlass
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    The OEM platinum plugs were .060. GM came out with an iridium replacement that gaps at .040"
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