My evo is breaking up badly under wot help!
Oct 7, 2009, 06:43 AM
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My evo is breaking up badly under wot help!
I reasently just changed the spark plugs on my evo. Under wide open throtle I get a really loud poping noise that kinda sounds like 2 step. I have no clue what it is. If u guys have any I ideas on what it is let me know
Oct 7, 2009, 06:44 AM
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How are the AFRs looking when this happens? Has there been a major temperature change between now and when you tunes the car...is your car running the stock tune?
Oct 7, 2009, 06:57 AM
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I gapped them to 27. And the car got tuned when it was really hot out and I don't remember what the afr's are off the top of my head I'll have to chec a little later
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Oct 7, 2009, 09:20 AM
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not to be repetitive but i have had the same issues. i guarantee it is the spark plug gap. try closing the gap to .25 (or a little under) that should clear it right up.
and the replacement plugs DO NOT come pre-gapped. if you are still getting break up after you try closing the gap, try getting 1 step colder plugs.
and just wondering what plugs are you using?
and the replacement plugs DO NOT come pre-gapped. if you are still getting break up after you try closing the gap, try getting 1 step colder plugs.
and just wondering what plugs are you using?
Oct 7, 2009, 10:00 AM
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not to be repetitive but i have had the same issues. i guarantee it is the spark plug gap. try closing the gap to .25 (or a little under) that should clear it right up.
and the replacement plugs DO NOT come pre-gapped. if you are still getting break up after you try closing the gap, try getting 1 step colder plugs.
and just wondering what plugs are you using?
and the replacement plugs DO NOT come pre-gapped. if you are still getting break up after you try closing the gap, try getting 1 step colder plugs.
and just wondering what plugs are you using?
Oct 7, 2009, 10:10 AM
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I had this issue when I first got the car, the loud popping sound. I regapped the plugs to .020 and it was fine. I then had to replace my plugs so when I was doing my dyno tune I had a huge misfire, checked the plugs again and they were gapped at .030. I regapped them to .020 and been smooth ever since.
p.s. if you are running colder then stock then you are prolly running BPR8 (I was having p0300 misfires with these plugs). BPR7 work great and should handle up to 400+ hp just fine.
p.s. if you are running colder then stock then you are prolly running BPR8 (I was having p0300 misfires with these plugs). BPR7 work great and should handle up to 400+ hp just fine.
Oct 7, 2009, 10:11 AM
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I'm wondering WHY YOU CHANGED PLUGS?!?!?
Only time I've ever changed them is when I've had a problem...
Never just woke up and said "I think I'll change my plugs today."
This may help diagnose....
Only time I've ever changed them is when I've had a problem...
Never just woke up and said "I think I'll change my plugs today."
This may help diagnose....
