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NGK TR55 is the 55 the gap?

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Old Apr 3, 2008 | 02:51 PM
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Default NGK TR55 is the 55 the gap?
I keep getting radom misfire code p0300 I have the AC delco iridium spark plugs & expensive taylor wires been in for only 25K miles.

the code appears (chech engine lite) then go'es away. zero preformance loss.

anyway I'm planning a spark plug swap w/ the NGK TR55 is the 55 the gap?

55thousands?

Thanks
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Old Apr 3, 2008 | 03:02 PM
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no it isnt the gap, .060 is the gap, but i gapped mine at .055 and it runs great
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Old Apr 3, 2008 | 03:09 PM
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mine came gapped at 55 out of the box, thats what im running them at also.
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Old Apr 3, 2008 | 04:21 PM
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gap then between .055 and .060
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Old Apr 4, 2008 | 02:41 PM
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They come pre gapped at 55 I think.....
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Old Apr 4, 2008 | 03:08 PM
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.55 works for me!
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Old Apr 4, 2008 | 03:11 PM
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Originally Posted by Z28/2002
gap then between .055 and .060
Stock gap is .060 so any where in between is ok with a few mods

Originally Posted by LS1crazy01
They come pre gapped at 55 I think.....
Yes they do
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Old Apr 4, 2008 | 03:45 PM
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Another TR55 guy here... .55 right out of the box. always helps to check though!
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Originally Posted by PewterY2KZ28
Another TR55 guy here... .55 right out of the box. always helps to check though!
Exactly! Mine were right on. Just be carefull checking them. I eased the gap checker on and it still managed to hang and get stuck between electrobes . No stratches or damage thakfully.
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Old Jul 31, 2008 | 12:04 PM
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chk ur wires first, i had a set of taylors and that bitch misfired all the time due to them.
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Old Jul 31, 2008 | 05:49 PM
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Default checking wires
I changed the plugs and am still getting the check engine light.

first day no light thought I fixed it second day dam check engine light comes back then goe's goe's off for a few days.

when I install spark plug wires I make sure they click once one the plug and twice on the coil.



are you suggesting to check the wires with a multimeter?

these are preuiem taylor wires.

Thanks
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