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Old 03-30-2018, 08:39 AM   #1
suprchrgd
 
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Green Spark Plug

Has anyone ever have an issue like this? ngk tr55 with 14K miles on them. My car started running a little rough and was down on power. She had a "different" note when cruising and also when in the throttle. At idle the typical "lope" was a little off, but couldn't pinpoint my issue. I don't drive her much through the cold months and didn't really notice she was running rough until she started to miss a little bit on me. I started with the plugs and they were definitely my issue. Shes like a whole new car again. She just didn't sound right and at wot throttle, I could tell she was not firing on all cylinders. All 8 plugs looked this way. They were all opened up from the original gap of .045 to .047-.048. Check these out:
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Old 03-30-2018, 10:35 AM   #2
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Running Lean?
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Old 03-30-2018, 10:39 AM   #3
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Running Lean?
typically white, when lean...
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Old 03-30-2018, 11:26 AM   #4
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keep an eye on coolant levels...may want to consider a Blackstone report on your oil...could answers your Q's...good luck OP! peace
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Old 03-30-2018, 11:30 AM   #5
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Originally Posted by suprchrgd View Post
typically white, when lean...
Typically, but you could be getting the plugs too hot and still getting green from it. Do you have a way to run fueling data?
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Old 03-30-2018, 11:33 AM   #6
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Typically, but you could be getting the plugs too hot and still getting green from it. Do you have a way to run fueling data?
I've been doing some reading and lean conditions can cause this along with running too hot of a plug. Going to pull the tr6 plugs after a couple 100 miles and see whats going on. Looks like I need to invest in a wideband.
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Old 03-30-2018, 11:48 AM   #7
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just researched that a to hot of a plug can/will cause this too...they ended up going with a cooler plug....peace
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Old 03-30-2018, 04:29 PM   #8
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just researched that a to hot of a plug can/will cause this too...they ended up going with a cooler plug....peace
Yep, hoping the tr6 is a better choice for me...
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Old 04-03-2018, 09:21 AM   #9
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Go with E3 Diamond Fire plugs.
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Old 04-03-2018, 09:39 AM   #10
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Go with E3 Diamond Fire plugs.
These are better than a copper or silver plug? I've never heard of these in the performance world.
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Old 04-03-2018, 09:41 AM   #11
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Some more detail about your setup would help form the conversation here. I'm assuming by your handle that you're boosted. A TR55 would be awfully hot in a forced induction application.
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Old 04-03-2018, 09:59 AM   #12
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Some more detail about your setup would help form the conversation here. I'm assuming by your handle that you're boosted. A TR55 would be awfully hot in a forced induction application.

not b00sted yet.
stg 4 btr cam, headers, etc 500whp..
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Old 04-04-2018, 09:19 AM   #13
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Who did your tune?
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Old 04-04-2018, 09:24 AM   #14
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Who did your tune?
Joe Enricho "Hoosier Street Cars". he's out of Lafayette, In.
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